Error extension to support UIAlertController

ErrorAlert.swift

import UIKit

/// Extending error to make it alertable
extension Error {
    
    /// displays alert from source controller
    func alert(with controller: UIViewController) {
        
        let alertController = UIAlertController(title: "Oops ❗️", message: "\(self)", preferredStyle: .alert)
        let okAction = UIAlertAction(title: "OK", style: .default, handler: nil)
        alertController.addAction(okAction)
        controller.present(alertController, animated: true, completion: nil)
    }
}