feat(events): Add comprehensive events management with dynamic fetching and UI

- Integrate Reka UI Tabs component for event browsing
- Create useEvents composable for event data management
- Implement events API integration with error handling
- Add events page with upcoming and past events sections
- Configure environment variables for API connection
- Add internationalization support for events navigation

src/components/layout/Navbar.vue

@@ -19,6 +19,7 @@ const isOpen = ref(false)
 
 const navigation = computed<NavigationItem[]>(() => [
   { name: t('nav.home'), href: '/' },
+  { name: t('nav.events'), href: '/events' },
   { name: t('nav.support'), href: '/support' },
 ])