feat: add internationalization support and update layout

- Added i18n module to nuxt.config.ts with English and Traditional Chinese locales.
- Created locale files for English, Traditional Chinese, and German.
- Updated default layout to use script setup syntax.
- Modified index page structure for future content.
- Implemented API endpoint for object storage file redirection.
- Removed unused CORS middleware.
- Created a new feed route handler.

package.json

@@ -11,6 +11,7 @@
   },
   "dependencies": {
     "@nuxt/image": "1.10.0",
+    "@nuxtjs/i18n": "9.5.4",
     "@nuxtjs/robots": "5.2.10",
     "@nuxtjs/seo": "3.0.3",
     "@uploadthing/nuxt": "^7.1.7",