 private let safariCookieAlertDescription = "To retrieve the cookie from Safari, please open the Security & Privacy section of the System Preference and give the \"Full Disk Access\" right to Hakumai app."
 
 // swiftlint:disable file_length
-final class MainViewController: NSViewController, NSTableViewDataSource, NSTableViewDelegate, NSControlTextEditingDelegate, NicoUtilityDelegate {
+final class MainViewController: NSViewController {
     // MARK: - Properties
     static var shared: MainViewController!
 

}

// MARK: - NicoUtilityDelegate Functions
extension MainViewController {
    func nicoUtilityWillPrepareLive(_ nicoUtility: NicoUtilityType) {
        DispatchQueue.main.async {
            self.connectButton.isEnabled = false


// MARK: - NSViewController Functions
extension MainViewController {
    override var representedObject: Any? {
        didSet {
            // Update the view, if already loaded.
        }
    }

    override func viewDidLoad() {
        super.viewDidLoad()

