Add note to hopefully clear confusion

src/app/account/login/page.tsx

@@ -92,6 +92,11 @@ function LoginForm ({ redirect }: { redirect: string | null }) {
             />
             <button type='submit'>Login</button>
           </form>
+          <p className='my-2 w-60 whitespace-normal text-center text-sm'>
+            Note: You login here with your Lncvrt Games Account. If you played
+            Berry Dash version 1.8.2 or older, then you login with that account
+            here. It has been migrated automatically.
+          </p>
           <div className='flex justify-center flex-col gap-2 mt-6 text-center'>
             <Link
               href='/account/forgot-username'