Add a platform property to ApplicationProxy and use it to set file dialog modality
Add a platform property to ApplicationProxy and use it to set file dialog modality

lo0ol/Ultimaker-Cura,ad1217/Cura,hmflash/Cura,Curahelper/Cura,bq/Ultimaker-Cura,quillford/Cura,derekhe/Cura,ynotstartups/Wanhao,ad1217/Cura,totalretribution/Cura,hmflash/Cura,derekhe/Cura,lo0ol/Ultimaker-Cura,markwal/Cura,fxtentacle/Cura,fieldOfView/Cura,Curahelper/Cura,markwal/Cura,bq/Ultimaker-Cura,fxtentacle/Cura,senttech/Cura,fieldOfView/Cura,DeskboxBrazil/Cura,DeskboxBrazil/Cura,quillford/Cura,senttech/Cura,ynotstartups/Wanhao,totalretribution/Cura