- [x] Add Favorite / Remove Favorite actions and persist favorites by application bundle.
	- Empty search: favorites first, then usage ranking within each group.
	- Typed search: match quality first, then favorites, launch count, recency, and alphabetical order.
- [x] add a star icon to the left of the "Application" type text in the selection entries for favorited items
- [ ] add some spacing between the favorites grouping and the rest of the applications