Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- app/controllers/oauth/authorized_applications_controller.rb
  Two changes too close to each other
- app/controllers/settings/sessions_controller.rb
- app/lib/user_settings_decorator.rb
  Two changes too close to each other
- app/models/media_attachment.rb
  New changes too close to glitch-soc only changes.
- app/models/user.rb
  Two changes too close to each other.
- app/services/remove_status_service.rb
  Kept direct timeline code which had been removed upstream.
- app/views/settings/preferences/show.html.haml
  Two changes too close to each other.
- config/locales/en.yml
  Introduction of a new string too close to glitch-soc-only's “flavour”
- config/locales/ja.yml
  Introduction of a new string too close to glitch-soc-only's “flavour”
- config/locales/pl.yml
  Introduction of a new string too close to glitch-soc-only's “flavour”
- config/locales/simple_form.en.yml
  Introduction of a new string too close to glitch-soc-only's “skin”
- config/locales/simple_form.pl.yml
  Introduction of a new string too close to glitch-soc-only's “skin”
- config/settings.yml
  Reverted upstream's decision of enabling posting application by default.

app/services/post_status_service.rb

@@ -1,6 +1,8 @@
 # frozen_string_literal: true
 
 class PostStatusService < BaseService
+  include Redisable
+
   MIN_SCHEDULE_OFFSET = 5.minutes.freeze
 
   # Post a text status update, fetch and notify remote users mentioned
@@ -115,10 +117,6 @@ class PostStatusService < BaseService
     ProcessHashtagsService.new
   end
 
-  def redis
-    Redis.current
-  end
-
   def scheduled?
     @scheduled_at.present?
   end