V5: Pointer incorrectly shown on disabled input's form-check-label if set via $form-check-label-cursor

Created by: prietveld

If $form-check-label-cursor: pointer is set, the pointer shows up on the form-check-label even if the corresponding form-check-input is disabled. Pointer-events should probably be set to none, similar to how this works for the input.

Confirmed in Edge, Chrome & Firefox on W10.