Fixing tab width and panner not aligned with the all-apps icons am: 524f4c4fba

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/19432064

Change-Id: Ifcf3ecd483dda14cf01028cec268e10e56aba6ba
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>