Fixed hardcoded array access

Client/src/Components/Sidebar/index.jsx

@@ -93,8 +93,9 @@ function Sidebar() {
   const { user } = useSelector((state) => state.auth);
 
   // Remove demo password if demo
-  if (user.role?.includes("demo")) {
-    menu[3].nested = menu[3].nested.filter((item) => {
+  const accountMenuItem = menu.find((item) => item.name === "account");
+  if (user.role?.includes("demo") && accountMenuItem) {
+    accountMenuItem.nested = accountMenuItem.nested.filter((item) => {
       return item.name !== "Password";
     });
   }