Fix taskbar 3-button truncation on rotate am: c0b30dc266

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/17109868

Change-Id: I0f81a210269a36d46d2250502abddd36c2f7f9c8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>