feat: update vite to v8. (#35)

Issue #26

client/package.json

@@ -15,7 +15,7 @@
     "@popperjs/core": "^2.11.8",
     "@types/node": "^25.6.0",
     "@types/react-dom": "^19.2.3",
-    "@vitejs/plugin-react": "^5.2.0",
+    "@vitejs/plugin-react": "^6.0.1",
     "bootstrap": "^5.3.8",
     "dompurify": "^3.4.1",
     "i18next": "^25.10.10",
@@ -31,7 +31,7 @@
     "react-router-bootstrap": "^0.26.3",
     "remark-gfm": "^4.0.1",
     "typescript": "^6.0.3",
-    "vite": "^7.3.2"
+    "vite": "^8.0.10"
   },
   "scripts": {
     "start": "vite --host",