Added  postcss-magic-animations in Shortcutst
Added  postcss-magic-animations in Shortcutst

* Added `postcss-magic-animations` to the list of plugin.
postcss/postcss,bezoerb/postcss,pascalduez/postcss,postcss/postcss,Semigradsky/postcss,jonathantneal/postcss,alanev/postcss