Merge "Move taskbar insets logic to TaskbarInsetsController" into tm-dev am: 74641da5b8 am: 7ba5a921d3

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/17778391

Change-Id: Idbdc6eb3e41710457c7bba8229a489a56fab8c08
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>