Minify WEB Content still uses old Java based compressor

[Chris2011]

Atm it is possible to minify CSS files directly, the content and a whole folder. Unfortunately, with the switch from YUICompressor to CSS Nano, I just did it for selecting a css file and call the action Minify CSS.

Minify WEB Content and Minify Content (Selecting code and hit the action Copy as minified CSS) still uses the old and deprecated CSSCompressor from YUICompressor. That needs to be refactored too to use the CSSNano CLI.