Fixed a crash that would occur when opening a shortcut files location (#3469)

Author: gave92

Files/Interacts/Interaction.cs

@@ -394,6 +394,10 @@ public void OpenItemWithApplicationPicker_Click(object sender, RoutedEventArgs e
         public async void OpenFileLocation_Click(object sender, RoutedEventArgs e)
         {
             var item = AssociatedInstance.ContentPage.SelectedItem as ShortcutItem;
+            if (string.IsNullOrEmpty(item?.TargetPath))
+            {
+                return;
+            }
             var folderPath = Path.GetDirectoryName(item.TargetPath);
             // Check if destination path exists
             var destFolder = await AssociatedInstance.FilesystemViewModel.GetFolderWithPathFromPathAsync(folderPath);