Users are unable to add nodes the process diagram. In both the legacy editor and in Stunner, they do not understand that you need to drag the components onto the canvas. Some users click and then click on the canvas, while others can't even find where, for example, the script task is.

Acceptance criteria
See https://issues.jboss.org/browse/RHPAM-2318 for acceptance criteria.

The empty state text should state "diagram" and not "business process".