refactor: move all scripts to Scripts folder

Assets/Scripts/SelectLevelMenu.cs

@@ -0,0 +1,33 @@
+using UnityEngine;
+using UnityEngine.UI;
+using UnityEngine.SceneManagement;
+
+public class SelectLevelMenu : MonoBehaviour
+{
+    public Text levelNameText;
+
+    public void PlayLevel()
+    {
+        SceneManager.LoadScene("LevelScene");
+    }
+
+    public void BackBtn()
+    {
+        SceneManager.LoadScene("HomeScene");
+    }
+
+    public void LastLevel()
+    {
+        // TODO
+    }
+
+    public void NextLevel()
+    {
+        // TODO
+    }
+
+    public void LevelStatsBtn()
+    {
+        // SceneManager.LoadSceneAsync(?);
+    }
+}