Conflicts:
- `Gemfile.lock`:
Changes were already cherry-picked and updated further in glitch-soc.
Kept glitch-soc's version.
- `README.md`:
Upstream updated its README, we have a completely different one.
Kept glitch-soc's README.
- `app/models/account.rb`:
Not a real conflict, upstream updated some lines textually adjacent
to glitch-soc-specific lines.
Ported upstream's changes.
