Merge "Accessibility bug fixes for the snack bar" into sc-dev am: 3b54044300 am: b2b6cefbee am: b3dfac5a34

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15225870

Change-Id: I5852acc9729a970c1e6dbda1f9cdf368084240c7