增加语言设置

SpineViewer/Models/PreferenceModel.cs

@@ -17,6 +17,7 @@ namespace SpineViewer.Models
     /// </summary>
     public partial class PreferenceModel : ObservableObject
     {
+
         #region 纹理加载首选项
 
         [ObservableProperty]
@@ -67,6 +68,13 @@ namespace SpineViewer.Models
 
         #endregion
 
+        #region 程序选项
+
+        [ObservableProperty]
+        private AppLanguage _appLanguage;
+
+        #endregion
+
         #region 序列化与反序列
 
         /// <summary>