This icon went missing. I had a larger diff here that made the icon
types stricter to catch errors but I'll save it for another PR.
### Change type
- [x] `bugfix`
- [ ] `improvement`
- [ ] `feature`
- [ ] `api`
- [ ] `other`
### Test plan
1. Create a shape...
2.
- [ ] Unit tests
- [ ] End to end tests
### Release notes
- Fixed a bug with…
This PR adds an offline indicator to the UI package. It's not used in
the default app but we'll use it on tldraw.com, and it makes sense to
include it here as it's generally useful.
### Change Type
- [x] `minor` — New feature
### Test Plan
1. See the zones example.
### Release Notes
- [@tldraw/tldraw] add offline indicator to ui components