Refactor svg-layout-designer component into controllers + Add setLoaded

src/Components/App/App.tsx

@@ -44,7 +44,8 @@ function UseHTTPGETStatePreloading(
 function UseCustomEvents(
   root: Element | Document,
   appRef: React.RefObject<HTMLDivElement>,
-  setEditor: (newState: IEditorState) => void
+  setEditor: (newState: IEditorState) => void,
+  setLoaded: (loaded: boolean) => void
 ): void {
   useEffect(() => {
     const funcs = new Map<string, () => void>();
@@ -53,6 +54,7 @@ function UseCustomEvents(
         return event.func(
           root,
           setEditor,
+          setLoaded,
           eventInitDict
         );
       }
@@ -96,7 +98,8 @@ export function App(props: IAppProps): JSX.Element {
   UseCustomEvents(
     props.root,
     appRef,
-    setEditorState
+    setEditorState,
+    setLoaded
   );
 
   UseHTTPGETStatePreloading(isLoaded, setEditorState, setLoaded);