Fix loading base and first pre-rendered scene from title screen

Assets/Scripts/BaseSceneManager.cs

@@ -0,0 +1,15 @@
+using Scampz.GameJam.Assets.Scripts;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+
+namespace Scampz.GameJam
+{
+  public class BaseSceneManager : MonoBehaviour
+  {
+    // Start is called before the first frame update
+    void Start()
+    {
+      GameManager.Instance.LoadScene(SceneNames.FirstPreRenderedScene, LoadSceneMode.Additive);
+    }
+  }
+}

Assets/Scripts/TitleScreen.cs

@@ -11,7 +11,6 @@ namespace Scampz.GameJam
       if (Input.GetButtonDown(InputOptions.Submit))
       {
         GameManager.Instance.LoadScene(SceneNames.BaseScene, LoadSceneMode.Single);
-        GameManager.Instance.LoadScene(SceneNames.FirstPreRenderedScene, LoadSceneMode.Additive);
       }
     }
   }