chore(deps): bump @angular/platform-browser from 20.3.16 to 21.2.7

Bumps [@angular/platform-browser](https://github.com/angular/angular/tree/HEAD/packages/platform-browser) from 20.3.16 to 21.2.7.
- [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/v21.2.7/packages/platform-browser)

---
updated-dependencies:
- dependency-name: "@angular/platform-browser"
  dependency-version: 21.2.7
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -19,7 +19,7 @@
     "@angular/compiler": "^20.3.16",
     "@angular/core": "^20.3.16",
     "@angular/forms": "^20.3.16",
-    "@angular/platform-browser": "^20.3.16",
+    "@angular/platform-browser": "^21.2.7",
     "@angular/platform-browser-dynamic": "^20.3.16",
     "@angular/router": "^20.3.16",
     "@formatjs/icu-messageformat-parser": "^2.1.10",