Merge "Detach the nav once the endTarget is determined as HOME" into sc-dev am: cd0fe7b057 am: b762b23227

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14811742

Change-Id: I46d8acf07a7f8b368687122b2e0d4953d8acb2b8