Create the view and handler:
Register the handler:
https://github.com/mattleibow/MauiWinUIRatingControlDemo/blob/main/MauiApp4/MauiProgram.cs#L11
Use the view:
https://github.com/mattleibow/MauiWinUIRatingControlDemo/blob/main/MauiApp4/MainPage.xaml#L13-L17