Make ext.uls.mediawiki depend upon ext.uls.init

With the user preference now enabled, we can no longer
assume that ext.uls.init will be loaded on every view.

This also fixes integration with the Translate extension.

Bug: 46306
Change-Id: I05c76e478ddcfb29000471dc79ca35ce77ad59b8

Resources.php

@@ -205,6 +205,7 @@ $wgResourceModules['ext.uls.mediawiki'] = array(
 		'jquery.uls',
 		'jquery.i18n',
 		'mediawiki.util',
+		'ext.uls.init',
 		'ext.uls.languagenames',
 	),
 ) + $resourcePaths;