Merge "Turn on fullscreen image / live wallpaper flag" into ub-launcher3-master am: 8201cd9cc0 am: 76d38c880e

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/WallpaperPicker2/+/11604816

Change-Id: Iba33d337ea821b8597347d79119b68373a3cc96a