Merge "Add NEW_TASK flag to Quickstep App Widget activity start" into sc-dev am: 4d5c733411 am: c794d0d91e am: acb8ea5b7a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14425541

Change-Id: I5d2b1b348209f5c952c05ead4e3ba9dd1e06477e