This PR changes App to Editor in the docs.
It goes alongside some changes that I accidentally commited to main...
so feel free to review those here as well!
([this
one](be1ec9699c))
and ([this
one](5a9f3a1726))
### Change Type
- [x] `documentation` — Changes to the documentation only[^2]
[^1]: publishes a `patch` release, for devDependencies use `internal`
[^2]: will not publish a new version
### Test Plan
1. Check that there's an Editor page in the docs sidebar.
- [ ] Unit Tests
- [ ] End to end tests
### Release Notes
- [docs] Updated 'App' to 'Editor'.
519d0dd348
