Merge "Measure WidgetsBottomPicker again when the number of spans changes" into sc-dev am: 6604eb54bf

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15095550

Change-Id: I5b5bf85f123ecc1423b74f52a7b33328e1bb4e6e