Add text color variables + minor SCSS fixes + high contrast skin

Escape regex metachars in keyword mutes

Support upstream bio items / custom account fields

Add a light theme by @Sylvhem

Port ba917e15f6 to glitch-soc

Port 74dae9458d and related to glitch-soc

Port the SCSS changes from cb74c0cfe4 to glitch-soc

Port SCSS changes from 5acd5315f2 to glitch-soc

Signed-off-by: Marcin Mikołajczak <me@m4sk.in>

Conflicts:
 	CONTRIBUTING.md

“Enable” high contrast theme

Signed-off-by: Marcin Mikołajczak <me@m4sk.in>

Conflicts:
 	Gemfile.lock

Fix #6994

[Glitch] Improve relative timestamps in web UI

Well, it seems unnecessary, anyway.

Conflicts:
 	.travis.yml
 	Gemfile.lock
 	README.md
 	app/controllers/settings/follower_domains_controller.rb
 	app/controllers/statuses_controller.rb
 	app/javascript/mastodon/locales/ja.json
 	app/lib/feed_manager.rb
 	app/models/media_attachment.rb
 	app/models/mute.rb
 	app/models/status.rb
 	app/services/mute_service.rb
 	app/views/home/index.html.haml
 	app/views/stream_entries/_simple_status.html.haml
 	config/locales/ca.yml
 	config/locales/en.yml
 	config/locales/es.yml
 	config/locales/fr.yml
 	config/locales/nl.yml
 	config/locales/pl.yml
 	config/locales/pt-BR.yml
 	config/themes.yml

* Revert "Fixes/do not override timestamps (#7331)"

This reverts commit 581a5c9d29.

* Document Snowflake ID corner-case a bit more

Snowflake IDs are used for two purposes: making object identifiers harder to
guess and ensuring they are in chronological order. For this reason, they
are based on the `created_at` attribute of the object.

Unfortunately, inserting items with older snowflakes IDs will break the
assumption of consumers of the paging APIs that new items will always have
a greater identifier than the last seen one.

* Add `override_timestamps` virtual attribute to not correlate snowflake ID with created_at

The previous rate limit allowed to post media so fast that it is possible
to fill up the disk space even before an administrator notices. The new
rate limit is configured so that it takes 24 hours to eat 10 gigabytes:
10 * 1024 / 8 / (24 * 60 / 30) = 27 (which rounded to 30)

The period is set long so that it does not prevent from attaching several
media to one post, which would happen in a short period. For example,
if the period is 5 minutes, the rate limit would be:
10 * 1024 / 8 / (24 * 60 / 5) = 4

This long period allows to lift the limit up.

* Add el and te

* Add missing locale files

* Do not override timestamps for incoming toots

* Remove every reference to override_timestamps

Statuses are now created with the announced publishing date
and are only pushed to timelines if that date is at most
6 hours earlier than the time at which it is processed.

* Revert "Weblate translations 20180503 (#7325)"

This reverts commit dfa6bccb64.

* Revert "Prevent timeline from moving when cursor is hovering over it (fixes #7278) (#7327)"

This reverts commit 58852695c8.

* Revert "Add pry-byebug (#7307)"

This reverts commit ab773e4d5f.

* Revert "Do not override timestamps for incoming toots (#7326)"

This reverts commit bd36791832.

* Translated using Weblate (German)

Currently translated at 100.0% (294 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/de/

* Translated using Weblate (Slovak)

Currently translated at 92.3% (578 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/sk/

* Added translation using Weblate (Greek)

* Translated using Weblate (Chinese (Hong Kong))

Currently translated at 100.0% (75 of 75 strings)

Translation: Mastodon/Doorkeeper
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/doorkeeper/zh_Hant_HK/

* Translated using Weblate (Chinese (Hong Kong))

Currently translated at 93.5% (58 of 62 strings)

Translation: Mastodon/Preferences
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/simple_form/zh_Hant_HK/

* Translated using Weblate (Chinese (Hong Kong))

Currently translated at 100.0% (62 of 62 strings)

Translation: Mastodon/Preferences
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/simple_form/zh_Hant_HK/

* Translated using Weblate (Chinese (Hong Kong))

Currently translated at 100.0% (62 of 62 strings)

Translation: Mastodon/Preferences
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/simple_form/zh_Hant_HK/

* Translated using Weblate (Chinese (Hong Kong))

Currently translated at 99.6% (624 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/zh_Hant_HK/

* Added translation using Weblate (Greek)

* Added translation using Weblate (Malay)

* Translated using Weblate (Greek)

Currently translated at 0.6% (2 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/el/

* Translated using Weblate (Greek)

Currently translated at 1.3% (4 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/el/

* Translated using Weblate (Greek)

Currently translated at 2.0% (6 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/el/

* Translated using Weblate (Greek)

Currently translated at 2.3% (7 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/el/

* Translated using Weblate (Greek)

Currently translated at 2.7% (8 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/el/

* Translated using Weblate (Greek)

Currently translated at 3.0% (9 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/el/

* Translated using Weblate (Greek)

Currently translated at 4.3% (27 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/el/

* Translated using Weblate (Greek)

Currently translated at 4.7% (30 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/el/

* Translated using Weblate (Greek)

Currently translated at 4.7% (30 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/el/

* Translated using Weblate (Greek)

Currently translated at 5.1% (32 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/el/

* Translated using Weblate (Greek)

Currently translated at 5.2% (33 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/el/

* Translated using Weblate (Swedish)

Currently translated at 95.1% (59 of 62 strings)

Translation: Mastodon/Preferences
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/simple_form/sv/

* Translated using Weblate (Portuguese (Brazil))

Currently translated at 99.3% (622 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/pt_BR/

* Translated using Weblate (Greek)

Currently translated at 23.8% (70 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/el/

* Translated using Weblate (Catalan)

Currently translated at 100.0% (626 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/ca/

* Translated using Weblate (Slovak)

Currently translated at 100.0% (294 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/sk/

* Translated using Weblate (Slovak)

Currently translated at 94.0% (589 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/sk/

* Added translation using Weblate (Telugu)

* Translated using Weblate (German)

Currently translated at 100.0% (294 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/de/

* Translated using Weblate (German)

Currently translated at 98.3% (61 of 62 strings)

Translation: Mastodon/Preferences
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/simple_form/de/

* Translated using Weblate (Telugu)

Currently translated at 0.3% (2 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/te/

* Translated using Weblate (German)

Currently translated at 100.0% (294 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/de/

* Translated using Weblate (German)

Currently translated at 98.3% (62 of 62 strings)

Translation: Mastodon/Preferences
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/simple_form/de/

* Translated using Weblate (German)

Currently translated at 100.0% (62 of 62 strings)

Translation: Mastodon/Preferences
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/simple_form/de/

* Translated using Weblate (German)

Currently translated at 100.0% (62 of 62 strings)

Translation: Mastodon/Devise
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/devise/de/

* Translated using Weblate (German)

Currently translated at 100.0% (75 of 75 strings)

Translation: Mastodon/Doorkeeper
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/doorkeeper/de/

* Translated using Weblate (German)

Currently translated at 99.5% (623 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/de/

* Translated using Weblate (Spanish)

Currently translated at 93.2% (584 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/es/

* Translated using Weblate (Spanish)

Currently translated at 93.2% (584 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/es/

* Translated using Weblate (Spanish)

Currently translated at 93.2% (584 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/es/

* Translated using Weblate (Spanish)

Currently translated at 93.2% (584 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/es/

* Translated using Weblate (Spanish)

Currently translated at 99.8% (625 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/es/

* Translated using Weblate (Slovak)

Currently translated at 95.0% (595 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/sk/

* Translated using Weblate (Greek)

Currently translated at 24.1% (71 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/el/

* Translated using Weblate (Greek)

Currently translated at 24.1% (71 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/el/

* Translated using Weblate (French)

Currently translated at 100.0% (294 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/fr/

* Translated using Weblate (French)

Currently translated at 99.6% (624 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/fr/

* Translated using Weblate (Italian)

Currently translated at 54.6% (342 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/it/

* Translated using Weblate (Italian)

Currently translated at 100.0% (294 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/it/

* Translated using Weblate (Slovak)

Currently translated at 95.3% (597 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/sk/

* Translated using Weblate (Japanese)

Currently translated at 99.8% (625 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/ja/

* Translated using Weblate (German)

Currently translated at 100.0% (294 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/de/

* Translated using Weblate (German)

Currently translated at 99.6% (624 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/de/

* Translated using Weblate (Slovak)

Currently translated at 100.0% (62 of 62 strings)

Translation: Mastodon/Preferences
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/simple_form/sk/

* Translated using Weblate (Galician)

Currently translated at 100.0% (626 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/gl/

* Translated using Weblate (Galician)

Currently translated at 100.0% (294 of 294 strings)

Translation: Mastodon/React
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/frontend/gl/

* Translated using Weblate (Galician)

Currently translated at 100.0% (62 of 62 strings)

Translation: Mastodon/Preferences
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/simple_form/gl/

* Translated using Weblate (Swedish)

Currently translated at 100.0% (62 of 62 strings)

Translation: Mastodon/Preferences
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/simple_form/sv/

* Translated using Weblate (Swedish)

Currently translated at 99.5% (623 of 626 strings)

Translation: Mastodon/Backend
Translate-URL: https://weblate.joinmastodon.org/projects/mastodon/backend/sv/

* Normalize translations
ran yarn build:development && i18n-tasks normalize && yarn
manage:translations && i18n-tasks remove-unused

* Add back file removed by weblate