Page width for quiz attempt

In an apparent fix for #210 (closed), the following code was added: https://gitlab.com/jezhops/moodle-theme_adaptable/-/blame/master/scss/settings/adaptable.scss#L1759

It's messing with my page widths for all quiz attempts, not just those with the "Full screen pop-up with some Javascript security". I'm able to override it in additional CSS, but I'd query whether it's really necessary.