feat: upgrade fumadocs

web/app/lib/source.ts

@@ -1,6 +1,16 @@
-import { docs } from "collections/server";
 import { loader, type InferPageType } from "fumadocs-core/source";
 import { lucideIconsPlugin } from "fumadocs-core/source/lucide-icons";
+import { defineDocs } from "fumadocs-mdx/macro";
+
+export const docs = defineDocs({
+  dir: "content/docs",
+  docs: {
+    async: true,
+    postprocess: {
+      includeProcessedMarkdown: true,
+    },
+  },
+});
 
 export const source = loader({
   source: docs.toFumadocsSource(),