Had to make some more modifications to get it to work again this time, due to the way the width of the table scales with the dialogue. But it's nice now.
Contributes to issue CURA-8686.
Just whenever we need it, please.
This removes a warning from the start-up sequence, but the warning is still there when you open the dialogue. It's complaining that a model has size -13 and another has size -14, but I don't know which model that is. The UserChangesModel seems to be fine at a size of 1 or so.
Contributes to issue CURA-7501.
As discussed in the CCB this morning. Since the new profile will be the _changed to_ profile rather than the _changed from_ (the latter of which would make the button useful, but since the profile is already switched at that point it would be a lot of work), the 'Create New Profile ...' button (in the Keep/Discard dialog) is redundant, since you can always create a new profile if you select keep changes.
