chore: Update project metadata and dependencies

- Change project title from "Atitlán Directory" to "Ariège Hub" in index.html
- Update app title in meta tags for PWA support
- Add @tanstack/vue-table dependency for enhanced table management
- Refactor ConnectionStatus component to improve status variant logic
- Enhance useEvents composable for better error handling and sorting
- Add 'events' translation to Spanish and French locales
- Create a new Pinia store for Nostr state management

src/App.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { onMounted, onUnmounted, ref } from 'vue'
+import { onMounted, onUnmounted } from 'vue'
 import Navbar from '@/components/layout/Navbar.vue'
 import Footer from '@/components/layout/Footer.vue'
 import ConnectionStatus from '@/components/nostr/ConnectionStatus.vue'