Merging ub-launcher3-qt-r1-dev, build 5642509

Test: Manual

Bug:133160356 P2 Tracking bug for P19 dynamic wallpapers
Bug:133465584 P1 [A11y] In customization, the color of info/customize tab name and location name aren't sufficiently contrast with the background.
Bug:133471577 P1 [A11y] While talkback is on, in the wallpaper list , an incoming call will cause the screen become blank
Change-Id: If40284fe5da073092a0e1eb67afeb38bc0788dc9