refactor: comment out Reward Board link in UserButton component

- Commented out the Reward Board link in the UserButton component to streamline the user interface.
- Maintained the existing structure for potential future use.

Author: Riot-pls

components/login/user-button/UserButton.tsx

@@ -79,9 +79,10 @@ export function UserButton() {
             <DropdownMenuItem asChild className='cursor-pointer'>
               <Link href='/profile'>Profile</Link>
             </DropdownMenuItem>
-            <DropdownMenuItem asChild className='cursor-pointer'>
+       {/*     <DropdownMenuItem asChild className='cursor-pointer'>
               <Link href='/profile/rewards-board'>Reward Board</Link>
             </DropdownMenuItem>
+            */}
             <DropdownMenuItem
               onClick={() => setIsDialogOpen(true)}
               className='cursor-pointer'