Conflicts:
- `app/javascript/mastodon/features/compose/components/poll_form.js`:
glitch-soc change because of having changed the default number of
available poll options.
Applied upstream's changes while keeping glitch-soc's default number of
poll options.
- `public/oops.png`:
We had a minor graphics change, probably not worth diverging from upstream.
Took upstream version.
