Merge "Focus on newly-added workspace items for accessibility." into sc-dev am: 2fd0be4b15 am: 2dd1321dbf am: 16b55b3505

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

Change-Id: I9d82f60bfd7f0591ce923774382d768b25df3b7d