FIX: Be able to bind list view.items to string

tns-core-modules/ui/list-view/list-view-common.ts

@@ -107,7 +107,7 @@ export abstract class ListViewBase extends View implements ListViewDefinition {
         lbl.bind({
             targetProperty: "text",
             sourceProperty: "$value"
-        }, null);
+        });
         return lbl;
     }