Fix controls accessibility on small windows

## Summary
Add minimum sizes and scrolling for controls when the application window is too small.

## Additional information
Currently for too short windows the display controls get cut off and can't be accessed:

Similarly, for too narrow windows the device selection options get hidden behind text and become unclickable:

It would be good if minimum sizes can be set for the elements of the controls displays (stop shrinking them if it would hide important info or make them unusable), and add scrolling for when the window gets too small to display a set of controls. It would also be possible to solve this by setting a minimum window size, but that could create issues for users wanting a small window during operation (when the controls have already been set).