点击预览位置，alt——上下挪动位置

Signed-off-by: TRAfoer <lhf190@outlook.com>

Assets/Scripts/EditorGame/GameElements/GameElement.cs

@@ -105,12 +105,10 @@ namespace Ichni.RhythmGame
 
     public abstract partial class GameElement //存档，删除，复制，粘贴
     {
-        public Action refreshAction = new Action(() => { });
         public virtual void Refresh()
         {
             if (connectedTab != null) connectedTab.tabButtonText.text = this.elementName;
             gameObject.name = elementName;
-            refreshAction?.Invoke();
         }
 
         /// <summary>