* chore: bump version to 2.21.12 and implement safe redirect path validation
- Updated application version from 2.21.11 to 2.21.12 in package.json.
- Introduced `getSafeRedirectPath` and `isSafeRedirectPath` utility functions to validate user-supplied redirect URLs, enhancing security against open redirect attacks.
* fix: address page reload issue in Admin tests for CI