Merge "Update drop target button alignment across devices" into tm-dev am: 61804735

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/18557384



Change-Id: I02ca7d5196ed01b4082a115e6e1ab9187b6f62cc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>