Merge "NIU Actions: Support Dark Mode and Landscape" into sc-dev am: f6e138cf21 am: 85e89fceab am: 8e2ad99ef6

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

Change-Id: I5bd35195a02fc1f88b8e0d5dab2de3d12e707ba7