Merge "Add a new string for widget configuration drop target" into sc-v2-dev am: d9f0c84f27 am: c14688087c

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15934342

Change-Id: I86279a7c5301d0eec222563722c4e6cfaf194a65