Merge "Shorten and center TaskMenuView for landscape" into sc-v2-dev am: 5dded93a72 am: 870a105b79

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15857414

Change-Id: I144ed5776c8c64e9827309ef732b82ac0db43433