refactor: remove legacy service worker and manifest, integrate Vite PWA plugin

- Deleted the old service worker implementation and manifest file.
- Integrated Vite PWA plugin for improved service worker management.
- Updated main.js to remove service worker registration logic.
- Refactored registerServiceWorker.js to use the new PWA registration method.
- Added new service worker (sw.js) with caching strategies for API and static resources.
- Updated vite.config.js to include PWA configuration and manifest details.

Web/package.json

@@ -30,6 +30,11 @@
     "globals": "^16.5.0",
     "prettier": "3.6.2",
     "vite": "^7.2.4",
-    "vite-plugin-vue-devtools": "^8.0.5"
+    "vite-plugin-pwa": "^1.2.0",
+    "vite-plugin-vue-devtools": "^8.0.5",
+    "workbox-expiration": "^7.4.0",
+    "workbox-precaching": "^7.4.0",
+    "workbox-routing": "^7.4.0",
+    "workbox-strategies": "^7.4.0"
   }
 }