DBReload doesn't require an already existing file anymore

DbReload/DbReload/MainViewModel.cs

@@ -21,6 +21,7 @@ public partial class MainViewModel : ObservableObject
     {
         OpenFileDialog dlg = new OpenFileDialog();
         dlg.Filter = "SQLite Files (*.db,*.dbs)|*.db;*.dbs";
+        dlg.CheckFileExists = false;
         if (dlg.ShowDialog() == true)
             SqLiteFile = dlg.FileName;
     }