(bug 42382) Indicate context in input settings/more languages

1. Fix a regression introduced in
27039e1141
- a change in a class name caused the back link not to appear.
Now the link is back.

2. Copy the same logic to the input settings panel.

Change-Id: Ie80032ee2e14853f96cfb3b48dec5c85398c8373

resources/js/ext.uls.displaysettings.js

@@ -234,8 +234,8 @@
 						displaySettings.$parent.show();
 					} );
 
-					uls.$menu.find( 'div.uls-title' ).append( $back );
-					uls.$menu.find( 'div.uls-title h1' )
+					uls.$menu.find( 'div.uls-title-region' ).append( $back );
+					uls.$menu.find( 'h1.uls-title' )
 						.data( 'i18n', 'ext-uls-display-settings-ui-language' )
 						.i18n();
 				},