Polish Settings UI: Very annoying functionality

[carlos-zamora]

• Go to any profile -> Go to Appearance or Advanced tab -> Hit 'Apply': SUI automatically switches to the General tab (can be annoying if the user just wants to check out what a setting does)
• Appearance -> Open 'Color scheme' dropdown -> Cannot dismiss the dropdown by clicking somewhere else
  • Moved to Light-dismiss doesn't work on ComboBox in XAML Islands Light-dismiss doesn't work on ComboBox in XAML Islands microsoft-ui-xaml#3961
• tooltips on radio buttons currently describe entire set of options. Need descriptions on each individual setting options.
  • Case in point: What does "uniform to fill" mean? On Profiles/Appearance. It's impossible to know what these enum values really mean.
  • we got rid of these

[zadjii-msft]

RE: the Profile pivot resetting

In a5a46af, I'm doing something similar to how we want to fix this. We need to stash internal navigation state in the {page}NavigationState, and keep a singleton instance of each page's state in the MainPage. That way, we can have the Profiles page update the selected pivot within the NavigationState, and the next instance of Profiles will be able to look up that state.