Fallback to CurrentWallpaperInfoFactory if recents is not available am: b6abe55a8c

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

Change-Id: Ie56f9a60d5ae770960a2e9bf3e98719fd76e1e0c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>