fix: Add error handling for team options when teams are not used

[wout-o]

Thank you for providing the fixes in release v3.3.2

This PR addresses the issue where Utils::getTenantModel() could return null, leading to the "Class name must be a valid object or a string" error page when trying to edit roles. The solution includes a null check, ensuring that if getTenantModel() returns null, the code safely returns an empty collection.

[what-the-diff]

PR Summary

• Tenant Model Update
  This update changes how our system interacts with the tenant model. Now, in cases where the tenant model might not be existing, our system ensures it will return an empty collection instead of causing an error. This enhances the robustness and fault-tolerance of our backend operations.

[bezhanSalleh]

thanks!