Merge "[Overview Sharing] Turn on the feature flag for overview sharing." into sc-dev am: 5354abb0e7 am: 77da540f21 am: 82415bdb1d

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

Change-Id: I7b804e45814e912216a7c9093b05ba0c6984f1a3