Merge "Marks clock view in preview as not important for Talkback" into udc-dev am: fc7f96a43a am: efc1751aca

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/ThemePicker/+/23532292

Change-Id: I9119fd65cd7c95c9ccced439aaa9f3f3be44ff19
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>