Merge "Enable variable size thumbnail for large screen" into sc-dev am: 823c5f8bf6

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/13427477

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I78354b5ae84c742eefcefe200dc8130a740df4c6