Merge "[TP] Preview click opens wallpaper selector [2/3]." into tm-qpr-dev am: 956d9c26

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/ThemePicker/+/21379678



Change-Id: Iccddd87f9a54b8168e06cd3907c2e2125e618b30
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>