Fixing tab width and panner not aligned with the all-apps icons am: 524f4c4f

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



Change-Id: I858cff6a00a303aee66a93c7c8e5776d4ef41b4b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>