Fix Altertdialog GTK backend uses as well IAlertDialogBackend instad of MessageDialog
Fix Altertdialog GTK backend uses as well IAlertDialogBackend instad of MessageDialog

sevoku/xwt,iainx/xwt,lytico/xwt,hwthomas/xwt,akrisiun/xwt,antmicro/xwt,cra0zy/xwt,mminns/xwt,mono/xwt,hamekoz/xwt,directhex/xwt,steffenWi/xwt,TheBrainTech/xwt,residuum/xwt,mminns/xwt