Add using UnityEditor.UIElements to SettingsUIBuilder.cs and EditorUIUtils.cs

Author: AzureBubble

UnityProject/Packages/com.jasonxudeveloper.jengine.core/Editor/CustomEditor/EditorUIUtils.cs

@@ -24,6 +24,7 @@
 // THE SOFTWARE.
 
 using UnityEditor;
+using UnityEditor.UIElements;
 using UnityEngine;
 using UnityEngine.UIElements;
 

UnityProject/Packages/com.jasonxudeveloper.jengine.core/Editor/CustomEditor/SettingsUIBuilder.cs

@@ -28,6 +28,7 @@
 using JEngine.Core.Encrypt;
 using UnityEditor;
 using UnityEditor.Search;
+using UnityEditor.UIElements;
 using UnityEngine;
 using UnityEngine.UIElements;