Port 25f6f41052 to glitch-soc

Inspired by 8fe1f8d4ce

Fix #7316

* Make dropdown animations respect their placement

Also fix the corner radius on the privacy dropdown button when using top placement

* Fix code style issue

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

We don't have releases, so it don't make sense to mention.
On the other hand, a lot of our code is from upstream, so encourage people to
check whether it is a bug in glitch-soc or upstream.

Port a99179d31f and 09147186b7
to glitch-soc

* Unuse ActiveRecord::Base#cache_key

* Enable cache_versioning

* Call cache_collection

Merge upstream changes

To minimize fanout work and redis home feed storage space when
there are lots of recent sign-ups

Fix #8284

* Revert "Upgrade Doorkeeper to 4.4.1 (#8197)"

This reverts commit 464daffdf9.

* Except migration files from revert commit

Fix #8274

Fix #8275

As the batch operation progresses, the statuses_stats table grows,
and the WHERE NOT IN subquery becomes more expensive

Fix #8269

Fix #8261

Not active by default unless config/database.yml is edited

Merge upstream changes

Conflicts:
	.circleci/config.yml
	app/controllers/authorize_follows_controller.rb
	app/javascript/packs/public.js

Moved new stuff from packs/public.js to core/public.js.
Added appropriate use_pack in new controllers.

This includes clicks on hashtags, mentions, display names and media in the
timeline; and usernames in reply-indicator, detailed status, and the boost
modal.

* Add “bundle clean” suggestion from CircleCI doc

Cf. https://circleci.com/docs/2.0/caching/#bundler-ruby

* Use workspaces instead of caches for ruby gems

Cache are not guaranteed to be available, while the test jobs *require* their
depencies to run. Workspaces are thus more suitable.

One downside is that the order of workspace layer additions need to be
deterministic, which is why install-ruby{2.3,2.4} now depend on
install-ruby2.5.

* Add remote interaction dialog for toots

* Change AuthorizeFollow into AuthorizeInteraction, support statuses

* Update brakeman.ignore

* Adjust how interaction buttons are display on public pages

* Fix tests

Merge upstream changes

* Add Georgian language translation

* i18n-tasks normalize

This avoids a regression within OAuth with some clients

Conflicts:
	app/models/status.rb
	db/migrate/20180528141303_fix_accounts_unique_index.rb
	db/schema.rb

Resolved by taking upstream changes (no real conflicts, just glitch-soc
specific code too close to actual changes).

* Add Follow#revoke_request!

* Implement Undo { Accept { Follow } } (fixes #8234)