[Live preview 3/3] Add workspace / lock screen am: b940462c06 am: e35a2715ac

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/WallpaperPicker2/+/11524590

Change-Id: Ia7cb991af2af7a4ca3ed47d504513e374d096c7a