Keycloak config form stopped working correctly since openid_connect 3.x

The MR fixes 3 things:

1. The config schema as still the config schema for the old version. I updated this so it works with the provider config entities.

   Before:
   

   After
   

   Still 1 error left, but the error is about the redirect_url field, which is provided by openid_connect and shouldn't be saved in config. So we should fix that in openid_connect.
   

2. Hook keycloak_form_openid_connect_admin_settings_alter() was no longer called since openid_connect switched the providers to config entities. This resulted in config that was saved in the wrong place and validation was no longer running. I was able to remove the logic from this hooks and move it to the provider plugin.
3. Form states were no longer working and all the fields were always shown. The structure of the form was changed, so I had to update the selectors.

Looks great! Quickly tested this and the form indeed saves correctly now. Didn't notice that before.

Also wondering what module or tool you used in your screenshots 😉

@BramDriesen,

https://www.drupal.org/project/config_inspector →

Automatically closed - issue fixed for 2 weeks with no activity.