Bump @angular/router from 16.2.8 to 16.2.11 in /frontend (#200)

Bumps [@angular/router](https://github.com/angular/angular/tree/HEAD/packages/router) from 16.2.8 to 16.2.11.
- [Release notes](https://github.com/angular/angular/releases)
- [Changelog](https://github.com/angular/angular/blob/main/CHANGELOG.md)
- [Commits](https://github.com/angular/angular/commits/16.2.11/packages/router)

---
updated-dependencies:
- dependency-name: "@angular/router"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

frontend/package.json

@@ -19,7 +19,7 @@
     "@angular/material": "^16.2.9",
     "@angular/platform-browser": "^16.2.10",
     "@angular/platform-browser-dynamic": "^16.2.8",
-    "@angular/router": "^16.2.8",
+    "@angular/router": "^16.2.11",
     "@angular/youtube-player": "^16.2.7",
     "@ngbracket/ngx-layout": "^16.1.3",
     "mat-table-filter": "^15.0.0",