* [REF-2087] Better rx.progress styling integration with radix themes
Support the `radius` prop on `ProgressRoot`, via data-radius and CSS tokens
Support the `color_scheme` on `ProgressIndicator`, via data-accent-color and CSS token
Move high-level `Progress` to a real `Component` subclass to get better pyi hinting
Allow overriding the background color of the `ProgressIndicator` via low-level api
Remove `value` and `max` props from `ProgressRoot` (these only apply to `ProgressIndicator`)
* Progress: do not pass `value` or `max` to ProgressRoot
* progress: use background_color instead of background-color
