Fix: "Simple Publication Workflow" Uses Validators for "Two-Step Publication Workflow"

Configuration of workflow start validators for Simple Publication Workflow was erroneously using the validators configuration for the Two-Step Publication Workflow. This has been fixed.

(CMS-29171)

Bugfix: Studio Console Errors If No Workflow Server Is Used

Studio operation without Workflow Server (repository.workflow.connect=false) led to error messages in Studio browser console. This is now fixed.

(CMS-18779)