Hide the drawer/modal when constructing all pages

Might be better to do this on config... also extract it into a parent
"Page" component

js/forum/src/components/UserPage.js

@@ -29,6 +29,7 @@ export default class UserPage extends Component {
     app.history.push('user');
     app.current = this;
     app.drawer.hide();
+    app.modal.close();
   }
 
   view() {