fix: math

composables/metadata.ts

@@ -3,5 +3,14 @@
  * @param title The title string.
  */
 export function useTitle(title: string) {
-  useHead({ title: `${title} | Eggworld` });
+  useHead({
+    title: `${title} | Eggworld`,
+    link: [
+      { rel: "icon", type: "image/x-icon", href: "/favicon.ico" },
+      {
+        rel: "stylesheet",
+        href: "https://cdn.jsdelivr.net/npm/katex@0.16.0/dist/katex.min.css",
+      },
+    ],
+  });
 }