Merge "Remove flicker when dismissing snackbar" into sc-dev am: 2d8856537e am: 40729fbdd6 am: dae4894a07

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15190712

Change-Id: I6c7e8a42253e3eaf4e66c630d53399c04e235f5b