fix so extra game info shows in dual-pane mode too

onWindowFocusChanged() isn't called when a pane opens, and setting up
that field depended on it. So call from init() too.

xwords4/android/XWords4/src/org/eehouse/android/xw4/GamesListDelegate.java

@@ -989,6 +989,7 @@ public class GamesListDelegate extends ListDelegateBase
                 }
             } );
 
+        updateField();
     } // init
 
     @Override