Dedicated extra space
Right now, we just make the extra space in the exam another question. This makes grading cumbersome.
Add dedicated extra space, that can be toggled right inside of the grading view for the question you're grading. This way, you can have the feedback options and the submission next to eachother.
- add a "this is extra space" checkbox / switch to the PanelEdit in exam.jsx, to be marked when specifying problems
- add a extra_space boolean value to the problem class
- add a "view extra space" button in grading view, which displays the extra space underneath the current problem
- allow for multiple extra spaces, which are displayed below each other in the grading view