Conflicts:
- `app/controllers/concerns/web_app_controller_concern.rb`:
Upstream changed the order of Action Controller filters for web app
controllers.
Glitch-soc has an extra filter due to its theming system.
Changed the order accordingly.
- `app/views/settings/preferences/appearance/show.html.haml`:
Conflict due to an extra newline in glitch-soc.
Removed that newline and applied upstream's changes.