Merge "Update size limits to match spec." into sc-dev am: adeb26b0dc am: c7c86dffe7

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15338351

Change-Id: Idfcb676b2428d64a1d90e66a377d63fe8743e0d7