chore: organized project ui structure

Assets/Scripts/View/UI/CloseButton.cs

@@ -0,0 +1,20 @@
+using UnityEngine;
+using UnityEngine.UI;
+
+namespace View.UI {
+	public class CloseButton : MonoBehaviour {
+		private Button _button;
+
+		private void Start() {
+			_button = GetComponent<Button>();
+			_button.onClick.AddListener(CloseClicked);
+		}
+
+		private void CloseClicked() {
+#if UNITY_EDITOR
+			Debug.Log("Quit");
+#endif
+			Application.Quit();
+		}
+	}
+}