fix(): 修复重启后切换模式后相机丢失BUG，修复重启后UI绑定失效的BUG，将GameManager移动到Gameplay

Assets/Script/Gameplay/UI/StartGameButton.cs

@@ -1,16 +1,20 @@
 using UnityEngine;
 using Core;
 using Script.Gameplay.Input;
-
+using Script.Gameplay.Global;
 namespace UI
 {
     public class StartGameButton : UIBase
     {
         public string levelName = "Level1";
+
         public void StartGame()
         {
-            ScenesManager.Instance.LoadGameplay(levelName);
-            InputManager.Instance.SetCursorState(false,CursorLockMode.Locked);
+            if (levelName == "Level1")
+                GameManager.Instance.StartGameplay();
+            else if (levelName == "Test")
+                GameManager.Instance.StartTest();
+            InputManager.Instance.SetCursorState(false, CursorLockMode.Locked);
         }
     }
 }