Merge "[AllApps][Work] Introduce work toggle Fab" into sc-dev am: 2f346b8666 am: 2e8ef02c31

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14948496

Change-Id: I724d7ef6602bb8b3e76eaf6b8d4dba68462d0cf0