Fixes #6056

Port 7b7c26063e to glitch-soc

Webpacker (Ruby wrapper to webpack) uses RAILS_ENV-based environments while
the javascript configuration for webpack re-reads this configuration file using
the NODE_ENV environment variable. This means that when RAILS_ENV=test, running
“assets:precompile” compiled the production packs in “public/packs” while
webpacker expects them in “public/packs-test”. This causes Ruby to recompile
them on-the-fly, possibly leading to race conditions in parallel_tests.

This changes:
- Disables on-the-fly compilation in test environment
- Changes the javascript part to read the correct environment

Webpacker (Ruby wrapper to webpack) uses RAILS_ENV-based environments while
the javascript configuration for webpack re-reads this configuration file using
the NODE_ENV environment variable. This means that when RAILS_ENV=test, running
“assets:precompile” compiled the production packs in “public/packs” while
webpacker expects them in “public/packs-test”. This causes Ruby to recompile
them on-the-fly, possibly leading to race conditions in parallel_tests.

This changes:
- Disables on-the-fly compilation in test environment
- Changes the javascript part to read the correct environment

* Group reports by target account

* Improve CSS

* NavLinks with activeclass instead of Link in actionbar to highlight active tab

* highlight border-bottom in action bar consistent to public view

Merge upstream changes

Conflicts:
	app/controllers/oauth/authorizations_controller.rb

Just two changes being too close to one another.
Took both.

Port f66a786029 to glitch-soc

Port 478ca39e5e to glitch-soc

Port front-end changes from f7765acf9d to glitch-soc

Port 25b0d7538e to glitch-soc

Port front-end changes from c36b9cc5a6 to glitch-soc

Port front-end changes from c083816c24 to glitch-soc

* add rake task for generating AUTHORS.md

* update AUTHORS.md

* rubocop

* CLI interface for creating/deleting local users

- tootctl accounts add USERNAME
- tootctl accounts del USERNAME

* Add CLI interface for culling remote users that no longer exist

- tootctl accounts cull

* Add force_login option to OAuth authorize page

For when a user needs to sign into an app from multiple accounts
on the same server

* When logging out from modal header, redirect back after re-login

* RU: Fixed typos and wrong translations

* RU: Added missing "chosen_languages" string

* RU: Fixed translation for "Features" tab in Admin Dashboard

* Shortened "Mobile apps" string, lowercased "following" string (it needs plurals btw), fixed typo at "copy" string.

* Fixed "media only" string, shortened "Content warning" placeholder, edited "mute thread" translation

* RU: Fixed "Reply to all" translation, Re-worded "short description" translation

You currently need to enable `layout.css.scrollbar-colors.enabled` in `about:config` in Firefox
Nightly.

CSFR-prevention is already implemented but adding this doesn't hurt.

A brief introduction to Same-Site cookies (and the difference between strict and
lax) can be found at
https://blog.mozilla.org/security/2018/04/24/same-site-cookies-in-firefox-60/

TLDR: We use lax since we want the cookies to be sent when the user navigates
safely from an external site.

Port f08e6e9ab5 to glitch-soc

Fixes #7380.

Will clear the browser's cache, cookies and storage.

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Clear-Site-Data
https://w3c.github.io/webappsec-clear-site-data/