refactor: Use blurred button in simulator map

Sources/Earthquake Network/Controllers/Simulator/AlertSimulatorViewController.swift

@@ -52,6 +52,14 @@ class AlertSimulatorViewController: UIViewController, MKMapViewDelegate {
         return view
     }()
     
+    private lazy var closeButton: EQNBlurredCloseButton = {
+        let button = EQNBlurredCloseButton()
+        button.translatesAutoresizingMaskIntoConstraints = false
+        button.addTarget(self, action: #selector(closeTapped(_:)), for: .touchUpInside)
+        button.setTitleColor(.darkGray, for: .normal)
+        return button
+    }()
+    
     private lazy var mapView: MKMapView = {
         let map = MKMapView()
         map.translatesAutoresizingMaskIntoConstraints = false
@@ -95,6 +103,7 @@ class AlertSimulatorViewController: UIViewController, MKMapViewDelegate {
     
     private func setupUI() {
         view.addSubview(mapView)
+        view.addSubview(closeButton)
         view.addSubview(viewfinderView)
         view.addSubview(calculateButton)
         
@@ -103,6 +112,8 @@ class AlertSimulatorViewController: UIViewController, MKMapViewDelegate {
         mapView.leftAnchor.constraint(equalTo: view.leftAnchor).isActive = true
         mapView.rightAnchor.constraint(equalTo: view.rightAnchor).isActive = true
         
+        closeButton.addDefaultConstraint(to: view)
+        
         viewfinderView.topAnchor.constraint(equalTo: mapView.topAnchor).isActive = true
         viewfinderView.bottomAnchor.constraint(equalTo: mapView.bottomAnchor).isActive = true
         viewfinderView.leftAnchor.constraint(equalTo: mapView.leftAnchor).isActive = true