Update UnCSS config.
Update UnCSS config.

* simplify ignores
* `noscript` selectors are kept with uncss 0.12.x. Prior, with 0.8.1 they weren't.

FeodorFitsner/mpc-hc.org,FeodorFitsner/mpc-hc.org,Underground78/mpc-hc.org,mpc-hc/mpc-hc.org,FeodorFitsner/mpc-hc.org,mpc-hc/mpc-hc.org,Underground78/mpc-hc.org,mpc-hc/mpc-hc.org,Underground78/mpc-hc.org