[QS] Update landscape UI

Rolling forward the landscape UI changes (To not break taimen with a
notch this time!). OG CL: ag/3717677

Shorten status bar height in landscape and update colors to use
wallpaperTextColor when in landscape mode.

Additionally modified scrim opacity for the QS panel to provide more
contrast/focus on content.

Test: Visually
Bug: 73808887
Change-Id: I249579d2898b9915868bb584661864d10ed88de2