- Separate AuthMenuEntry into reusable parts.
- Add some missed finals in nearby classes.
Bug: T214540
Change-Id: Icf285bf8d2b791dd1aa4ee37ae90d27afe42bd91
The number of generic menu entry specific files is growing which is
cluttering the Menu/ directory. Move the entries to a new subfolder.
Bug: T214540
Change-Id: I807d6f6034ee1924e3a606f5e6782c3298896825