Update NavigationToolbar.xaml.cs

Author: yaira2

src/Files.App/UserControls/NavigationToolbar.xaml.cs

@@ -276,6 +276,9 @@ private async void Omnibar_QuerySubmitted(Omnibar sender, OmnibarQuerySubmittedE
 				// Try invoking built-in command
 				foreach (var command in Commands)
 				{
+					if (command == Commands.None)
+						continue;
+
 					if (!string.Equals(command.Description, item?.Text, StringComparison.OrdinalIgnoreCase) &&
 						!string.Equals(command.Description, args.Text, StringComparison.OrdinalIgnoreCase))
 						continue;