about page added

VDownload.Core/VDownload.Core.ViewModels/About/AboutViewModel.cs

@@ -0,0 +1,13 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace VDownload.Core.ViewModels.About
+{
+    public class AboutViewModel : ObservableObject
+    {
+    }
+}