Bump nuxt from 3.15.4 to 3.16.0 in /frontend

Bumps [nuxt](https://github.com/nuxt/nuxt/tree/HEAD/packages/nuxt) from 3.15.4 to 3.16.0.
- [Release notes](https://github.com/nuxt/nuxt/releases)
- [Commits](https://github.com/nuxt/nuxt/commits/v3.16.0/packages/nuxt)

---
updated-dependencies:
- dependency-name: nuxt
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

frontend/package.json

@@ -45,7 +45,7 @@
     "eslint-plugin-vue": "10.0.0",
     "eslint-plugin-vuejs-accessibility": "2.4.1",
     "happy-dom": "15.11.6",
-    "nuxt": "3.15.4",
+    "nuxt": "3.16.0",
     "nuxt-icon": "0.6.10",
     "nuxt-security": "2.2.0",
     "playwright": "1.49",