feat: sso implementation

[huglx]

What I have done:

• adding SSO providers
• logging via SSO
• New users now become a member of the organization that issued the SSO provider
• customized login page for self-hosted instances
• started writing tests

What I plan to add:

• collect the user's role that the organization set for them and grant these roles to the user
• more test coverage
• simplify adding a provider (there is a URL that calls .../well-known/openid-configuration, and through this URL, I can fetch all needed URLs)

tbc

[huglx]

I have gone through all the change requests. I just have a question about the validation schema. I created SSO_PROVIDER in GlobalValidationSchema and added it to the form. Is this the correct way to do it? Or is there another way to do it?

On the weekend, I plan to write tests and documentation, so I hope it will be ready by Monday.

[JanCizmar]

I have gone through all the change requests. I just have a question about the validation schema. I created SSO_PROVIDER in GlobalValidationSchema and added it to the form. Is this the correct way to do it? Or is there another way to do it?

On the weekend, I plan to write tests and documentation, so I hope it will be ready by Monday.

yes, that's correct approach.