Scroll content to edges of screen on tablet

- This affects the contact card (only in landscape)
and favorites grid (landscape and portrait).
Contact card portrait view is tricky because
the tab carousel doesn't deal well with
padding / margin values and will get offset
incorrectly.

- Adjust padding values on tablet landscape
contact card

- Modify spacing and width of favorites/frequent
fragments on tablet portrait so it looks more
similar to the "group" and "all" tabs

Bug: 5506809
Bug: 5239701
Change-Id: I2538fe4e048e722d9b5b423a50cc696cb86730a5