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

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

Change-Id: I0bb7ca3b7b8c2c5895b75a7efc8ca509f04b454f