:art: Refactor extends-before-mixins rule to work with Gonzales 3.2
:art: Refactor extends-before-mixins rule to work with Gonzales 3.2

sktt/sass-lint,srowhani/sass-lint,DanPurdy/sass-lint,sasstools/sass-lint,bgriffith/sass-lint,sasstools/sass-lint,flacerdk/sass-lint,srowhani/sass-lint