Training/Inference Widget Overgrown

[roomrys]

Bug description

The training GUI has long since become overgrown in size. In the past, it was a minimalist design decision to leave-out a scrollbar from the Training/Inference GUI, but reluctance to remove features has yielded a much too large GUI. This becomes a problem when users on smaller screens are unable to fit the GUI and therefore cannot select certain buttons: Notice how the GUI is slightly obscured by Dock (bottom left). This is a 14" screen, so for smaller screens this problem becomes pretty bad.

This is a blocker for #1003.

Expected behaviour

The training GUI should be resizable and have a scroll element that makes resizing possible.

Actual behaviour

The GUI cannot be resized and therefore certain buttons are off-screen on smaller screens.

Your personal set up

• OS: mac 13.4

• Version(s): SLEAP v1.3.3, python 3.9

• SLEAP installation method (listed here):
  • [ ] Conda from package
  • [x] Conda from source
  • [ ] pip package