Evaluate accessibility with Accessibility Insights

[chrisglein]

• [x] Test using voice input for text (Win+H)
• [x] Test app using Narrator (Ctrl+Win+Enter to start, Caps+Space for scan mode)
• [ ] Implement headings (H/Shift+H)
  • https://github.com/microsoft/react-native-windows/pull/8516
• [ ] Implement landmarks (D/Shift+D)
  • https://github.com/microsoft/react-native-windows/issues/8452
  • https://github.com/microsoft/react-native-windows/pull/8708
• [ ] Fix mouse hover controls to be accessible on key focus. This is what Teams does, for example.
• [ ] #95
• [ ] #96
• [ ] #97
• [ ] #98
• [ ] #99

Summary

What WinUI Gallery looks like (what I assume to be an app in good standing):

What this app looks like:

[chrisglein]

• Should the icon be given role "none"? Or "image"?
• Unlike in WinUI2, the label for TextBoxes isn't included. Should it be grouped somehow?
• There are no groups like I see in gallery I don't see those in the valid roles list
• Should the prompt textbox be of role "search"?
• I've set things as role "header", but nothing changes
• The "edit" roles are TextInput, but the value doesn't seem to show through here. The placeholder value does. Is that correct?