feat(seo): add sitemap generator

components/seo/json-ld.tsx

@@ -0,0 +1,14 @@
+/**
+ * Renders a schema.org JSON-LD <script>. Safe in server or client components.
+ * The `<` escape prevents the JSON from breaking out of the <script> element.
+ */
+export function JsonLd({ data }: { data: object | object[] }) {
+  return (
+    <script
+      type="application/ld+json"
+      dangerouslySetInnerHTML={{
+        __html: JSON.stringify(data).replace(/</g, "\\u003c"),
+      }}
+    />
+  );
+}