feat: make markdown work

dear lord

server/routes/sitemap.xml.ts

@@ -0,0 +1,13 @@
+import { serverQueryContent } from "#content/server";
+import { SitemapStream, streamToPromise } from "sitemap";
+
+export default defineEventHandler(async (event) => {
+  // Fetch all documents
+  const docs = await serverQueryContent(event).find();
+  const sitemap = new SitemapStream({ hostname: "https://eggworld.tk" });
+  for (const doc of docs) {
+    sitemap.write({ url: doc._path, changefreq: "monthly" });
+  }
+  sitemap.end();
+  return streamToPromise(sitemap);
+});