Improve feedback during inference

[andreped]

When running the model, a progress bar shows up, but there is little to no real feedback to the user regarding how far it has come (or whether it is processing at all).

The only real feedback is when running a pipeline on all images in a project.

We should improve the progress widget by perhaps add a logger that prompts that it is indeed working, and perhaps highlight which step it is currently working on, if possible/relevant.

[andreped]

This was fixed in b65fe1a

A logger may be added in the future, but for now I don't see it as necessary.