ToggleGroupControl: Support bordered style without taking up full width #74165
Description
ToggleGroupControl does not officially support the bottom layout, where there are borders but the component doesn't take up the full width of the container:
This can be done by adding a width: fit-content. What's unclear is how to sort out the current props, such as isAdaptiveWidth and isBlock, which are confusing and don't reflect how we actually think about these variants.
Not sure yet if we should simply tack this feature onto the existing prop system, or we should wait for a new version in @wordpress/ui where we can rethink all the props.