TP-24538: Login bug fix

src/App.tsx

@@ -44,6 +44,8 @@ const App = () => {
               'You are not authorized to perform this action. Permission denied!',
             );
           }
+          localStorage.setItem('react-token', 'null');
+          localStorage.setItem('user-data', 'null');
         });
     }
   }, []);

src/components/LeftNav/index.tsx

@@ -65,7 +65,7 @@ const LeftNav: React.FC<LeftNavProps> = ({ children }) => {
   ];
 
   const returnUserData = () => {
-    if (userDetails?.length) {
+    if (userDetails && userDetails?.length) {
       try {
         const parsedUserData = JSON.parse(userDetails);
         return parsedUserData?.preferred_username || 'User';