Add event logging for more languages in input settings

Change-Id: I98b048ad8fdb923bc7e0834d2021c49b687ad9da

resources/js/ext.uls.inputsettings.js

@@ -391,6 +391,10 @@
 
 			$moreLanguagesButton.on( 'click', function () {
 				inputSettings.$parent.hide();
+				mw.uls.logEvent( {
+					action: 'more-languages-access',
+					context: 'ime'
+				} );
 			} );
 		},