R1:f23bfccc0467

Replace ProfileMenu bugs with different bugs

Summary:
Ref T12174. This fixes more bugs than it creates, I think:

- Dashboards now show the whole menu.
- Project and home items now show selected state correctly.
- The "choose global vs personal" thing is now part of MenuEngine, and the same code builds it for Home and Favorites.
- Home now handles defaults correctly, I think.

Maybe regression/bad/still buggy?:

- Mobile home is now whatever the default thing was, not the menu?
- Title for…