Place progressbar below task
When you run a task on a layer with a long file name its progress bar is not visible because it is placed to the right of the file name:
Visually it might be better to place the progress bar below the task.
Just checked and it works fine.
Changes are committed. There is an issue though: progress bar is added to the nested node right now, but this node isn't excluded from keyboard navigation even though I set IsSelectable property to false. I believe it's a bug in Syncfusion's tree view. I created a bug report about it: https://www.syncfusion.com/support/directtrac/incidents/147542