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

Conflicts:
- app/controllers/directories_controller.rb
- app/controllers/settings/applications_controller.rb
- app/controllers/settings/base_controller.rb
- app/controllers/settings/deletes_controller.rb
- app/controllers/settings/exports_controller.rb
- app/controllers/settings/follower_domains_controller.rb
- app/controllers/settings/imports_controller.rb
- app/controllers/settings/migrations_controller.rb
- app/controllers/settings/notifications_controller.rb
- app/controllers/settings/preferences_controller.rb
- app/controllers/settings/sessions_controller.rb
- app/controllers/settings/two_factor_authentication/confirmations_controller.rb
- app/controllers/settings/two_factor_authentication/recovery_codes_controller.rb
- app/controllers/settings/two_factor_authentications_controller.rb

Conflicts were due to some refactoring already made in glitch-soc
when introducing flavours.

app/controllers/settings/sessions_controller.rb

@@ -3,7 +3,6 @@
 #  Intentionally does not inherit from BaseController
 class Settings::SessionsController < ApplicationController
   before_action :set_session, only: :destroy
-  before_action :set_body_classes
 
   def destroy
     @session.destroy!
@@ -16,8 +15,4 @@ class Settings::SessionsController < ApplicationController
   def set_session
     @session = current_user.session_activations.find(params[:id])
   end
-
-  def set_body_classes
-    @body_classes = 'admin'
-  end
 end