Update requirement files with new feature templates and fix backend API error message, along with mobile project config updates and documentation improvements

03_source/mobile/src/pages/DemoFacebookClone/index.tsx

@@ -13,7 +13,7 @@ import Tabs from './components/Tabs';
 
 import './style.scss';
 
-function DemoFacebookClone() {
+const DemoFacebookClone: React.FC = () => {
   return (
     <IonRouterOutlet>
       <Route path="/demo-facebook-clone/tabs" render={() => <Tabs />} />
@@ -22,6 +22,6 @@ function DemoFacebookClone() {
       <Redirect exact path="/demo-facebook-clone" to="/demo-facebook-clone/timeline" />
     </IonRouterOutlet>
   );
-}
+};
 
 export default DemoFacebookClone;