Give some space to the group display state dropdown

@@ -1418,6 +1418,10 @@ h6.fieldset-heading {
     margin-left: 7px;
 }
 
+.option-groups-region .group-display-state {
+    margin-right: 10px;
+}
+
 .dragged {
     position: absolute;
     opacity:  0.5;