fix: correct oidcsettings management (#4413)

* fix(oidcsettings): corrected projection, unittests and added the add endpoint

* fix(oidcsettings): corrected default handling and instance setup

* fix: set oidc settings correctly in console

* cleanup

* e2e test

* improve e2e test

* lint e2e

Co-authored-by: Livio Spring <livio.a@gmail.com>
Co-authored-by: Fabi <38692350+hifabienne@users.noreply.github.com>

console/angular.json

@@ -32,6 +32,7 @@
               "grpc-web",
               "@angular/common/locales/de",
               "codemirror/mode/javascript/javascript",
+              "codemirror/mode/xml/xml",
               "src/app/proto/generated/zitadel/admin_pb",
               "src/app/proto/generated/zitadel/org_pb",
               "src/app/proto/generated/zitadel/management_pb",