Refactors watch face config activity to match ustwo's design and

includes click on watchface in settings to change complications.
Also, lots of pngs so CL isn't as big as it seems.

Ability to edit appearance and other items (outside of complications)
will follow in other CLs.

Bug: 32214858
Change-Id: Ia39d965513aa53ef20771b1846fcbcfa58960ebc