Add cinnamon to vmwgfx and adaptive_sync in 00-mesa-defaults.conf to fix brightness flicker when VRR is enabled

Blacklist cinnamon process for adaptive sync

https://github.com/linuxmint/muffin/issues/462

And treat cinnamon the same as gnome-shell for vmwgfx

resubmission of !4915 (closed) since it is too far behind and couldn't be merged.