[AllApps][Work] Introduce work toggle Fab am: 08cca82eca am: b21f9d8c08 am: c59ea86119

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14724697

Change-Id: I4d1d90dd31a873231d3831e0d1be2065ef6d745f