Merge "Close task menu scrim when pressing home button" into sc-v2-dev am: 2280f3d5fc am: a9e6748ea4

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/16365179

Change-Id: I63dea1516d6853ddc9d9ee0ebd343f1bbed6dfdf