Rename `@tldraw/tldraw` to just `tldraw`! `@tldraw/tldraw` still exists
as an alias to `tldraw` for folks who are still using that.
### Test Plan
- [x] Unit Tests
- [ ] End to end tests
### Release Notes
- The `@tldraw/tldraw` package has been renamed to `tldraw`. You can
keep using the old version if you want though!
This PR adds E2E tests for the style panel.
It checks that:
- the style panel opens and closes as expected on mobile
- the style panel button is disabled for the eraser tool on mobile
- selecting a style hints the button
- changing a style changes the appearance of the shape
- It also moves a test from the toolbar tests that checks the correct
styles are exposed for the right tools
fixes tld-2222
- [x] `tests` — Changes to any test code only[^2]
### Release Notes
- Add style panel E2E tests
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Co-authored-by: Steve Ruiz <steveruizok@gmail.com>
