Use UniverseLib PanelBase/PanelDragger

src/UI/ExplorerUIBase.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using UniverseLib.UI;
+using UniverseLib.UI.Panels;
+
+namespace UnityExplorer.UI
+{
+    internal class ExplorerUIBase : UIBase
+    {
+        public ExplorerUIBase(string id, Action updateMethod) : base(id, updateMethod) { }
+
+        protected override PanelManager CreatePanelManager()
+        {
+            return new UEPanelManager(this);
+        }
+    }
+}