Bump vite-plugin-vue-devtools from 8.0.7 to 8.1.1 in /frontend

Bumps [vite-plugin-vue-devtools](https://github.com/vuejs/devtools/tree/HEAD/packages/vite) from 8.0.7 to 8.1.1.
- [Release notes](https://github.com/vuejs/devtools/releases)
- [Commits](https://github.com/vuejs/devtools/commits/v8.1.1/packages/vite)

---
updated-dependencies:
- dependency-name: vite-plugin-vue-devtools
  dependency-version: 8.1.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

frontend/package-lock.json

@@ -27,6 +27,6 @@
     "vite": "^7.3.2",
     "vite-plugin-pwa": "^1.2.0",
     "vite-plugin-static-copy": "^3.2.0",
-    "vite-plugin-vue-devtools": "^8.0.7"
+    "vite-plugin-vue-devtools": "^8.1.1"
   }
 }