Merge "Update work tab colors and fab background color" into udc-dev am: fe3d513650 am: 98b3fe1aba

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/23331299

Change-Id: I02766af694bf02c6fd339116c1aa19817a11c113
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>