Updates to the edit contact UI.

- Updated account colors and color layout
- Updated display in read-only mode
- Clearer strings to identify accounts
- Sort the contacts to edit so read-only ones
  always are at the bottom.

Fixes 2163539 and a good portion of 2163519.

Change-Id: Ib2afc992a8623f2a253d2a52a0b5c50ee866e5d8