♻️ 优化滚动条动画 :boom:增加触底切换菜单

Constant/WidthTypeEnum.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace GeekDesk.Constant
+{
+    public enum WidthTypeEnum
+    {
+        LEFT_CARD = 0,  //左侧托盘宽度
+        RIGHT_CARD = 1, //右侧托盘宽度
+        RIGHT_CARD_HALF = 2 //右侧托盘宽度的一半
+    }
+}