Update dependency @vitejs/plugin-vue to v6

Author: renovate[bot]

frontend/package-lock.json

@@ -24,7 +24,7 @@
     "@types/markdown-it": "^13.0.7",
     "@types/minimatch": "^5.1.2",
     "@types/seedrandom": "^3.0.8",
-    "@vitejs/plugin-vue": "^5.0.0",
+    "@vitejs/plugin-vue": "^6.0.0",
     "highlight.js": "^10.5.0",
     "jszip": "^3.5.0",
     "markdown-it": "^14.1.0",