moved widget building into registry

app/client/src/App.tsx

@@ -3,7 +3,9 @@ import logo from './assets/images/logo.svg';
 import './App.css';
 import { createStore } from 'redux'
 import appReducer from './reducers';
+import WidgetBuilderRegistry from "./utils/WidgetRegistry"
 
+WidgetBuilderRegistry.registerWidgetBuilders()
 const store = createStore(appReducer)
 
 class App extends Component {

app/client/src/utils/WidgetRegistry.tsx

@@ -5,10 +5,16 @@ import ContainerWidget, {
 import { IContainerProps } from "../editorComponents/ContainerComponent"
 import WidgetFactory from "./WidgetFactory"
 
-WidgetFactory.registerWidgetBuilder("CONTAINER_WIDGET", {
+class WidgetBuilderRegistry {
+  static registerWidgetBuilders() {
+    WidgetFactory.registerWidgetBuilder("CONTAINER_WIDGET", {
       buildWidget(
         widgetData: IContainerWidgetProps
       ): BaseWidget<IContainerWidgetProps, IContainerProps> {
         return new ContainerWidget(widgetData)
       }
-})
+    })
+  }
+}
+
+export default WidgetBuilderRegistry