Merge "Update initial staged split UX." into tm-dev am: 8d06bb8991 am: c1db924479

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/17251578

Change-Id: I97d9d6e3d4d8794c8a4bb6de999d17e6b0e4e565