Merge "Use target size to scale down a widget preview image" into sc-v2-dev...

Merge "Use target size to scale down a widget preview image" into sc-v2-dev am: 26b25c22 am: c873fb5e

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15502874

Change-Id: I2be7f16308a41a85f747ff4dc0d680a64f70fedc