Merge "Redesign homepage layout for two-pane mode." into sc-v2-dev am: 4e78e0923f am: 1e160f1799

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/16263227

Change-Id: Ie73b68cce81c56a39be87c0da665247bd26d1da1