[WIP] Hardcode app namespace and normalize generated service ids

- [ ] Hardcode app namespaces in all parts of the rad bundle
- [ ] Normalize generated services ids

Generated services:

 Service           | Class                          | Service Id
------------------- | ------------------------------- | --------------------------------
 Security Voter    | `App\Security\Voter\UserVoter` | `app.security.voter.user_voter`
 Entity Repository | `App\Entity\UserRepository`              | `orm.user_repository`
 Form Type | `App\Form\UserType`              | `app.form.user_type`