refactor(all): migrate from React to Next.js

src/lib/helmet.tsx

@@ -0,0 +1,9 @@
+import * as React from "react";
+
+export function Helmet({ children }: { children?: React.ReactNode }) {
+  return null;
+}
+
+export function HelmetProvider({ children }: { children: React.ReactNode }) {
+  return <>{children}</>;
+}