JOC Cockpit should show the Job Chain diagram like JOE does

Current Situation

There is a graphical static diagram in JOE that shows job chain workflows including file order source, orders and setbacks. A similar diagram is available with JOC but has not all features of the JOE diagram

• Titel and Path is not shown.
• Arrows instead of lines should be shown
• Error lines should be dotted
• on errror=suspend is not shown
• open start nodes with split and join/sync. JOC shows a very unclear graph (example1 from attached graph_issues.zip)
• File Order Sources should be shown as nodes. In the export file all file order sources are visible but not on the screen (example2)
• Return on exit codes branches are not shown (example3)

Desired Behavior

• The graphical diagram in JOC should
  • show the title and the path of the job chain
  • show arrows instead of lines
  • show dotted lines for edges to error nodes

Maintainer Notes

• The following improvements will be subject to later releases:
  • show job chains with open nodes more clear
  • show file order sources as nodes with an arrow to the assigned state