**As** an OpenProject admin
**I want to** be able to configure OpenID provider using a user interface
**so that** I don't have to use a command line and can see potential errors more easily.

**Acceptance criteria**

* OpenID provider configurations are accessible under Administration -> Authentication -> OpenID providers

* The configuration form supports

* filling data from OpenID Discovery endpoint

* specific providers like Google and Entra

* For Google discovery endpoint is already known. Therefore the UX should be simplified.

* For Entra discovery endpoint can be constructed from tenant. By default it should be `common`. And use should be able to change tenant.

* custom provider

* In this case user should be able to enter OpenID Discovery Begin of the insertionendpoint explicitly. 


These attributes can be obtained from the discovery endpoint.

End of the insertion Begin of the deletion endpoint. 

End of the deletion * Begin of the insertion authorization\_endpoint

* userinfo\_endpoint

* token\_endpoint

* end\_session\_endpoint

* jwks\_uri

* issuer


These attributes can't. Admin has to fill it in manually:

* identifier

* secret

* display\_nameEnd of the insertion