Merge "NIU Actions: Support Dark Mode and Landscape" into sc-dev am: f6e138cf21 am: 85e89fceab

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14753495

Change-Id: I305ee814796d7cc8d21b4ddc0e62cfd316945e70