Conflicts:
- `app/models/user_settings.rb`:
Upstream added a new user setting, directly next to a glitch-soc-only one.
The upstream setting would actually replace the glitch-soc one but it is not
fully implemented yet, so have them side by side now.
- `app/views/settings/preferences/appearance/show.html.haml`:
Ditto.
- `docker-compose.yml`:
Conflict due to different registry names. Updated the version while keeping
glitch-soc's registry.