Merge "Fix few A11y/ UI bugs for widget pickers" into sc-dev am: 51991a7333 am: 7c17371e11

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14372793

Change-Id: I89a3d11032ce20ac9cc0ff0ce73a963c79ee5359