- Refactor AppUI initialization in all platforms (sort of template
method pattern)
- Make AppMenu specific to macOS by wrapping it into a folder for
consistency
- Add SizeClassProviding for repeated checks on hsClass/vsClass
Fixes#659
Split AppUI into AppUI and AppUIMain to allow for a new, simplified
AppUITV target tailored for the Apple TV.
As a PoC, present a view with a list of the shared profiles.