Conflicts:
- `README.md`:
Upstream updated its README, while we have a completely different one.
Kept our README.
- `app/controllers/concerns/web_app_controller_concern.rb`:
Conflict because of glitch-soc's theming system.
Additionally, glitch-soc has different behavior regarding moved accounts.
Ported some of the changes, but kept our overall behavior.
- `app/javascript/packs/admin.js`:
Code changes actually applied to `app/javascript/core/admin.js`