stylelint is part of config, but not run by default
Also update to 0.4.1, it is the current default in many wmf extensions
Change-Id: I55f81489182628c088e362e081417514e252e6d6
This is programmatic output from python3 scripts/migrate.py
This will result in a Minerva skin dependent on MobileFrontend.
Post merge we will rename message keys to have minerva- prefix
Bug: T166748
Change-Id: Iff1f7e63e796cc5d4a6d2ab0370e0c33248d2fce