Merge "Fix few A11y/ UI bugs for widget pickers" into sc-dev am: 51991a7333 am: 4b1fe698be

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

Change-Id: Ib3a983b13c210668218d69d009d16299784ef4ba