Merge "Updated launcher text shadow values." into sc-dev am: 64fc7543f0 am: 278a73e4df am: a8c3b7c0c9

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14204932

Change-Id: I88db52660fd34dca2d14dd06cf2cc18423e04552