Refactor the css for interlanguage links and autonym class

Move it to a seperate css file ext.uls.webfonts.css so that the RL
modules are more granular and clear.

Also get the @font-face css for Autonym font get ready on page load
so that the font applied automatically to any future elements on page.

Change-Id: Icb76df5baedaba8ab613d665a1be923779a6b9e7

resources/css/ext.uls.css

@@ -136,9 +136,3 @@ div.display-settings-block:hover .settings-text {
 .ime-checked .ime-perime-help:hover {
 	opacity: 1;
 }
-
-/* Interlanguage links */
-#p-lang ul,
-.autonym {
-	font-family: 'Autonym', sans-serif;
-}