feat(ViteConfig, App, Router, DialogManager, MembersView, ScheduleView, ClubView, Home, TournamentsView, TrainingStatsView): enhance performance and responsiveness

- Updated Vite configuration to improve chunking strategy and set a chunk size warning limit.
- Refactored App.vue and DialogManager.vue to utilize async component loading for better performance.
- Modified router.js to implement lazy loading for various views, optimizing initial load times.
- Enhanced MembersView, ScheduleView, ClubView, and TournamentsView with responsive design adjustments for improved mobile usability.
- Improved styling and layout in Home.vue and TrainingStatsView to enhance user experience across different screen sizes.

frontend/vite.config.js

@@ -4,6 +4,30 @@ import vue from '@vitejs/plugin-vue';
 export default defineConfig({
   plugins: [vue()],
   mode: 'development',
+  build: {
+    chunkSizeWarningLimit: 700,
+    rollupOptions: {
+      output: {
+        manualChunks(id) {
+          if (!id.includes('node_modules')) {
+            return;
+          }
+
+          if (id.includes('vue-router')) return 'router';
+          if (id.includes('vue-i18n')) return 'i18n';
+          if (id.includes('vuex')) return 'store';
+          if (id.includes('socket.io-client')) return 'socket';
+          if (id.includes('html2canvas')) return 'html2canvas';
+          if (id.includes('jspdf')) return 'jspdf';
+          if (id.includes('sortablejs')) return 'sortable';
+          if (id.includes('crypto-js')) return 'crypto';
+          if (id.includes('axios')) return 'http';
+
+          return 'vendor';
+        }
+      }
+    }
+  },
   resolve: {
     alias: {
       '@': '/src'