Mobile: Accessibility: Make it possible to create and edit profiles with a screen reader

[personalizedrefrigerator]

Summary

This pull request improves the accessibility of the profile switcher screen.

In particular, it:

1. Labels the "add profile" button.
   • Previously, TalkBack skipped the "add profile" button during navigation due to a missing label.
   • Related: WCAG 2.2 SC 1.1.1: Non-text content.
2. Exposes the long-press action on profile list items to screen readers.
   • To use an existing hook for building the long press action, the profile list items rendering was refactored into a separate component.
   • Possibly related: WCAG 2.2 SC 3.3.2: Labels or instructions
3. Exposes which profile is selected to screen readers.
   • Previously, this was only conveyed by bolding the active profile.
   • Related: SC 4.1.2: Name, role, value

See also #11661.

Testing plan

Android 13:

1. Enable TalkBack.
2. Open the profile configuration screen (in an app with multiple profiles, a non-default profile selected).
3. Move TalkBack focus to the first profile.
4. Verify that TalkBack reads "Default, Button", then "double-tap to activate", then "double-tap and hold to edit".
5. Double-tap and hold.
6. Verify that TalkBack reads "Configuration", then "Edit, button".
7. Close the dialog.
8. Move TalkBack focus to the active profile.
9. Verify that TalkBack describes the profile as "selected".
10. Move TalkBack focus to the new profile button.
11. Verify that the button is described as "New profile, button".
12. Double-tap.
13. Title the profile "Test".

• Remaining issue: The React Native Paper edit box's label isn't programmatically associated with the input. TalkBack can read the title, but only when the title itself is focused. The title is next in the focus order after the edit box.

13. Move focus to the save button and click it.
14. Move TalkBack focus to the new profile's list item.
15. Using TalkBack, rename the new profile to "Test 2".
16. Using TalkBack, delete one of the existing profiles.
17. Using TalkBack, switch to the just-created "Test 2" profile.