[bug] Handle case better when no authentication providers are enabled #383
Description
Describe the bug
If no auth providers are enabled, the user is presented with a blank page. We should be more informative here.
To reproduce
Deploy with AUTH_CREDENTIALS_LOGIN_ENABLED set to false
Sourcebot deployment information
Sourcebot version (e.g. v3.0.1): 4.5.1
Additional information
No response