memory optimization

src/Shared/HandyControlDemo_Shared/Properties/Langs/LangProvider.cs

@@ -8,7 +8,7 @@ namespace HandyControlDemo.Properties.Langs
 {
     public class LangProvider : INotifyPropertyChanged
     {
-        internal static LangProvider Instance => ResourceHelper.GetResource<LangProvider>("DemoLangs");
+        internal static LangProvider Instance { get; } = ResourceHelper.GetResource<LangProvider>("DemoLangs");
 
         private static string CultureInfoStr;