Merge "Merge "Update gesture nav tutorial back left and right videos" into sc-dev am: bef29071b5 am: b7e2dcbcd4" into sc-v2-dev-plus-aosp am: a25119a44c

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14969574

Change-Id: I38e493430afa280409101b965d69cd4bb2cf894c