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

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

Change-Id: I2e4942374a531b532ec4e10b34ee8a4b7a9b67c6