Polylang assets URLs fix

Just install it and get URL's working – no coniguration is required.

This plugins fix errors with:

• CSS
• JS
• Fonts (also with Google fonts)

Also with this plugin you can get rid of "Asset from origin 'XXX' has been blocked from loading by Cross-Origin Resource Sharing policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'XXX' is therefore not allowed access."