[Week view] Honour cancelled lessons
In the group week view, check if a lesson substitution is a cancelled lesosn. If yes, make the lesson warning and strike-through (it is already warning for substituted lessons).
Edited by Nik | Klampfradler
In the group week view, check if a lesson substitution is a cancelled lesosn. If yes, make the lesson warning and strike-through (it is already warning for substituted lessons).