     func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
         if let sting = Sting(url: urls[0]) {
             show.append(sting)
-            applySnapshot()
         }
     }
 }

        NotificationCenter.default.addObserver(self, selector: #selector(addStingFromFiles), name: .addStingFromFiles, object: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(applySnapshot), name: .stingsDidChange, object: show)
        NotificationCenter.default.addObserver(self, selector: #selector(reloadEditedSting(_:)), name: .didFinishEditing, object: nil)
    }
    
    override func viewWillLayoutSubviews() {

        else { return }
        
        show.insert(show.removeSting(at: sourceIndexPath.item), at: destinationIndexPath.item)
        coordinator.drop(sourceItem.dragItem, toItemAt: destinationIndexPath)
    }
}
