Invalid Path Warning is removed when selecting Input Fields in the UI Toolkit Editor Window Creator Window

Steps to reproduce:

1. Open any Project
2. Right click in the Project Browser and select Create > UI Toolkit > Editor Window
3. In the UI Toolkit Editor Window Creator select "Choose Folder" and select any folder outside the Project's "Asset" directory and click the button "Confirm"
4. Observe that the Invalid Path Warning is displayed
5. Select any of the input fields in the Window (C#, UXML, USS)
6. Observe where the Warning was previously

Actual results: The Invalid Path Warning is removed when selecting any of the Input Fields, indicating that the Path is now valid even though no changes in the selected Path were made. 

Expected results: The Warning isn't removed when any of the Input Fields are selected, better approach would be to Show/Hide the Warning based on what Path is selected alongside when the Path is shown in the Window and not when the User clicks "Confirm"

Reproducible with versions: 6000.0.63f1, 6000.2.14f1, 6000.3.0f1, 6000.4.0a5, 6000.5.0a2

Tested on (OS): Windows 11