chore: update nuxt configuration and add new modules

- Changed compatibility date to '2025-05-06'.
- Added '@nuxtjs/robots' and '@nuxtjs/seo' modules.
- Updated package.json to include new dependencies for robots and SEO modules.
- Removed existing robots.txt file and created a new _robots.txt file.
- Created empty footer and navigation components.
- Added default layout structure with navigation, main content, and footer.

nuxt.config.ts

@@ -1,6 +1,9 @@
-// https://nuxt.com/docs/api/configuration/nuxt-config
 export default defineNuxtConfig({
-  compatibilityDate: '2024-11-01',
+  compatibilityDate: '2025-05-06',
   devtools: { enabled: true },
-  modules: ['@nuxt/image']
+  modules: [
+    '@nuxt/image',
+    '@nuxtjs/robots',
+    '@nuxtjs/seo'
+  ]
 })