small but important improvements

[abdelaziz]

Hi
some improvements that make life easier

_it would be great to have a button "apply the modification" in the menus "object, door, window" to see the result in the viewport of whether it produces if a parameter changes without leaving the munu each time, as a synchronization 😉

_if i make several changes in the composite manager if i press ESC, i lose all my changes , it would be good to have a warning message have to undo the changes 😉