Merge "First pass at Taskbar layout UI polish for SUW" into tm-qpr-dev am: 5c4b6b50d7 am: dd1a143a29

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/20086056

Change-Id: I75f2750949b10f690f1210fef85aeb98342f4452
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>