Merge "Focus on newly-added workspace items for accessibility." into sc-dev am: 2fd0be4b15 am: f7c1eb2715

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14357544

Change-Id: Id5179e80fe4549cf508e03b2dec034fb014b42de