Merge "Replace conversations widget app icon" into sc-dev am: 14e2070709 am: a43c268170 am: 82d395cbcc

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14353226

Change-Id: Iabb6fbd4348b1f58da6ac9ab052323b29d446537