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.

layouts/default.vue

@@ -1,3 +1,5 @@
+<script setup lang="ts">
+</script>
 <template>
     <nav>
 
@@ -6,6 +8,6 @@
         <slot/>
     </main>
     <footer>
-        
+
     </footer>
 </template>