Fix "Workflow Transitions" override marking

Again caused by recent regressions from 7094372

- There was still usage of old config options that were deprecated.
- HTML elements were generated with multiple class attributes.
- When retrieving global configs use ALL_USERS instead of null (default user).

I wonder if there is a way to currently navigate to manage_config_workflow_page.php - will check after we revert the menu changes since it touched areas related to manage config menu.  For now, I applied the fixes anyway.

Fixes #17658