feat: add meta descriptions

composables/metadata.ts

@@ -2,9 +2,14 @@
  * Set the page title in the format [title] | Eggworld.
  * @param title The title string.
  */
-export function useTitle(title: string) {
+export function useTitle(title: string, description?: string) {
   useHead({
     title: `${title} | Eggworld`,
+    meta: [
+      { name: "viewport", content: " width=device-width,initial-scale=1" },
+      { name: "description", content: description || "" },
+      { name: "theme-color", content: "#ffffff" },
+    ],
     link: [
       { rel: "icon", type: "image/x-icon", href: "/favicon.ico" },
       {