- integrating sign in with google

- set up dark mode context and other services

src/pages/404.js

@@ -0,0 +1,12 @@
+import { navigate } from "gatsby";
+import { useEffect } from "react";
+
+const NotFoundPage = () => {
+  useEffect(() => {
+    navigate("/");
+  }, []);
+
+  return null;
+};
+
+export default NotFoundPage;