Merge "[Overview Sharing] Turn on the feature flag for overview sharing." into sc-dev am: 5354abb0e7 am: 7b33d321e9

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14342901

Change-Id: I0d3f79d117b7d835725102461e54ae283f763279