Adapt GUI to screen resolution and or add scroll bars when not possible

[erikfrojdh]

From Jiaguo: For smaller screens in the lab, the GUI is too big (probably depends on the resolution) so that the start button and progress bar are not visible. Is it possible to add a scroll bar on the bottom and right so that even one can not see them one can scroll to that part?

[erikfrojdh]

Maybe it's possible to scale depending on screen resolution?

[sudip70]

In principle, it should be possible. I will have a look and create a new branch.

[sudip70]

I think the scroll bar makes more sense as it gives users more freedom. So I will implement that and create PR for review.