Fallback to CurrentWallpaperInfoFactory if recents is not available am: b6abe55a8c am: 2f21912211 am: a668fd4c92

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/ThemePicker/+/23451868

Change-Id: I8482002d6b6a469dc9071d80363b4e920fb58748
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>