* Adjust status embeds

Adjust styles of embed code. Adjust styles of embed pages. Fix overflow of embed-modal.

* Remove trailing whitespace

* Using width from the variable

- Fix assumption that `url` is always a string. Handle it if it's an
  array of strings, array of objects, object, or string, both for
  accounts and for objects
- `sharedInbox` is actually supposed to be under `endpoints`, handle
  both cases and adjust the serializer

* Show pinned statuses only in the top of the profile page

* Refactor AccountsController#show_pinned_statuses?

* Update hr.json

* Update hr.json

* Update: some missing strings

* Updates missing strings

* New string

* Update oc.json

* Update oc.yml

* Update oc.json

See: <https://www.w3.org/wiki/Activity_Streams_extensions#as:manuallyApprovesFollowers>

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

* Make "unfollow" undo pending outgoing follow request too

* Add cancel button to web UI when awaiting follow request approval

* Make the hourglass button do the cancelling

* Raise an error for remote url in StatusFinder

Previous implementation had allowed remote url with status id which also exists on local.

Then that bug leads /api/web/embed to return wrong embed url.

* Fix oembed_controller_spec

* Fix NoMethodError in Web::PushSubscription

```
undefined method `site_contact_email' for #<Class:0x00005976d13c40>

/usr/local/bundle/gems/activerecord-5.1.3/lib/active_record/dynamic_matchers.rb:22:in `method_missing'
/usr/local/bundle/gems/attr_encrypted-3.0.3/lib/attr_encrypted.rb:295:in `method_missing'
/usr/local/bundle/gems/attr_encrypted-3.0.3/lib/attr_encrypted/adapters/active_record.rb:129:in `method_missing_with_attr_encrypted'
/mastodon/app/models/web/push_subscription.rb:53:in `push_payload'
```

* Specify serializer in Web::NotificationSerializer

* UploadArea should only preventDefault for Escape

This will make accessibility for some things less effortful, since we won't have to define a prior event handler to do whatever should be happening by default.

* Remove workaround for fixed bug in SettingToggle

SettingToggle was toggling itself in response to keydown of space, and then the keyup was doing it again

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

* views: Adjust heading positions

* Adjust settings pages

Adjust label. Adjust tables. Adjust admin/reports/* pages. Fix 2FA QR code style for narrow devices. Widen several pages. Increase contrast.

* Remove trailing whitespace

* Disable embed modal when private status

* Remove `reblogDisabled`

Using _: property names is discouraged, as in the future,
canonicalization may throw an error when encountering that instead
of discarding it silently like it does now.

We are defining some ActivityStreams properties which we expect
to land in ActivityStreams eventually, to ensure that future versions
of Mastodon will remain compatible with this even once that happens.
Those would be `locked`, `sensitive` and `Hashtag`

We are defining a custom context inline for some properties which we
do not expect to land in any other context. `atomUri`, `inReplyToAtomUri`
and `conversation` are part of the custom defined OStatus context.

* Add link to 'noscript' message

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

* remove indent

* Add embed button to dropdowns of in-timeline statuses

* yarn run manage:translations

* Fix a style issue on the public profile page for some mobile browsers

Signed-off-by: Cygnan <email@cygnan.com>

* Set padding-bottom to 20px

Signed-off-by: Cygnan <email@cygnan.com>

* Make PreviewCard records reuseable between statuses

**Warning!** Migration truncates preview_cards tablec

* Allow a wider thumbnail for link preview, display it in horizontal layout (#4648)

* Delete preview cards files before truncating

* Rename old table instead of truncating it

* Add mastodon:maintenance:remove_deprecated_preview_cards

* Ignore deprecated_preview_cards in schema definition

* Fix null behaviour

* Use system's default font on non web UI pages

* Remove import for Redirect

- Ask for desktop notifications after 1 minute of use instead of
  instantly
- Ask for protocol handler permission after 5 minutes of use
  instead of instantly

* Make the fr locales up-to-date with the last changes (new profile view, applications)

* Use the same wording for toots in fr.yml and fr.json

* Translate the pin related strings

* Translate pin-related locales on the front-end

* Add missing locales in doorkeeper.fr.yml and remove un-used ones

* Change "posts" back to "status" in the /about/more page in fr.yml

* Fix typos for "status" in fr.yml

* fix typo for "status" in fr.json

* Remove duplicate string

* Non-breaking space before punctuation

* 'Better' translation for "unpin"

* Put back 'pouet' where it was already

* Fix

* Fix

* Refactor Web::PushSubscription, remove welcome message

* Add missing helper

* Use locale of the receiver on push notifications (#4519)

* Remove unused translations

* Fix dir on notifications

Currently, private / direct posts via OStatus from AP compatible instance will be dropped due to failing to fetch AP version.

So this fallbacks to OStatus handling:

* when failed to fetch ActivityPub version
* when status is neither :public nor :unlisted

* Don't process ActivityPub payload if signature is invalid

* Fix style issue

* Guarantee Subscription service first account has proper URL details

Subscription Service potentially could break if the first user suspended
themselves, creating a situation where the urls that populate throughout
subscription service's PuSH request would cause the remote API to throw 503 errors.

Guaranteeing that the first account picked is not suspended prevents this problem.

* Fix style issue