Switch import to cookies in nextjs-start serverApp

Author: jhuleatt

nextjs-start/src/lib/firebase/serverApp.js

@@ -2,7 +2,7 @@
 // https://nextjs.org/docs/app/building-your-application/rendering/composition-patterns#keeping-server-only-code-out-of-the-client-environment
 import "server-only";
 
-import { headers } from "next/headers";
+import { cookies } from "next/headers";
 import { initializeServerApp, initializeApp } from "firebase/app";
 
 import { getAuth } from "firebase/auth";