<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Added new admin routes: "auth", "setup", and "notFound" for improved navigation and access within the admin interface.
- Introduced a utility for simplified and flexible lazy loading of React components with fallback support.
- **Improvements**
- Updated routing structure in the admin frontend for clearer route management and enhanced Sentry integration.
- Centralized route definitions for easier maintenance and consistency.
- Upgraded dependencies to support the latest React Router and React versions.
- Enhanced asynchronous handling in setup form navigation.
- **Chores**
- Updated project references and workspace dependencies for better package management.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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