Fix: Fixed crash that would occur when navigating folders continuously in a short period of time (#14744)

Author: hishitetsu

src/Files.App/Views/Shells/BaseShellPage.cs

@@ -478,11 +478,7 @@ public async Task UpdatePathUIToWorkingDirectoryAsync(string newWorkingDir, stri
 
 				// Cancel if overrided by single item
 				if (cts.IsCancellationRequested)
-				{
-					cts = null;
 					return;
-				}
-				cts = null;
 
 				ToolbarViewModel.PathComponents.Clear();
 				foreach (var component in components)