TaskScripThread missing translation, and finished at 0%

[matthias-ronge]

Describe the bug
The TaskScriptThread executes automatic workflow steps. It is displayed in the task manager. Here, the verbalization is missing ("Automatic task:"), and the finished task has 0% progress. These are small things, but it's not nice, and 0% can also be irritating, as if the task didn't work correctly (but it's just showing wrong).

To Reproduce
Steps to reproduce the behavior:

1. Use a workflow with an automatic task
2. Let a process with that workflow perform an automatic task.

Expected behavior
If task has completed, should show 100% progress. Add translation to messages file: “Automatic task”

Screenshots