I wanna set jwt token into http cookie

 * Signs in the user with the provided credentials.
 * Sets the JWT cookie and redirects to the dashboard on success.
 * @param _prevState - Previous state, unused.
 * @param formData - Form data containing 'identifier' and 'password'.
 * @returns A message indicating the failure of the operation, or redirects to the dashboard on success.
 */
export async function sign_in(
  _prevState: unknown,
  formData: FormData
): Promise<FormMessage> {
  try {
    const identifier = formData.get("identifier") as string;
    const password = formData.get("password") as string;
    const response = await fetch(AUTH_URL, {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
      },
      body: JSON.stringify({ identifier, password }),
    });
    const { jwt, error } = await response.json();
    await new Promise((resolve) => setTimeout(resolve, 1500));

    if (error) {
      if (error.status === 400) {
        return { message: "Invalid username or password" };
      }
      return { message: error.message || "Server Error", type: "error" };
    }

    if (jwt) {
      setJwtCookie(jwt);
    }
  } catch (error) {
    return { message: "Server Error" };
  }
  redirect("/dashboard");
}