use delay to run away from UserDefaults' bug

userDefaultsDelayByTimer.swift

class TableViewController: NSViewController, NSTableViewDelegate {
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do view setup here.
        run()
        Timer.scheduledTimer(timeInterval: 0.1, target: self, selector: #selector(sendNotification), userInfo: nil, repeats: false)
    }

    func sendNotification() {
        NotificationCenter.default.post(name: TableViewControllerDidAppear, object: self)
    }
    
    func run() {
        // do things
    }
}