build(deps): bump nuxt from 3.20.2 to 3.21.0 in /src

Bumps [nuxt](https://github.com/nuxt/nuxt/tree/HEAD/packages/nuxt) from 3.20.2 to 3.21.0.
- [Release notes](https://github.com/nuxt/nuxt/releases)
- [Commits](https://github.com/nuxt/nuxt/commits/v3.21.0/packages/nuxt)

---
updated-dependencies:
- dependency-name: nuxt
  dependency-version: 3.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

src/package.json

@@ -42,7 +42,7 @@
     "is-cidr": "^6.0.1",
     "is-ip": "^5.0.1",
     "js-sha256": "^0.11.1",
-    "nuxt": "^3.20.2",
+    "nuxt": "^3.21.0",
     "otpauth": "^9.4.1",
     "pinia": "^3.0.4",
     "qr": "^0.5.4",