[DevTools] Copy Selector replace Clr Namespace with xmlns

[workgroupengineering]

Is your feature request related to a problem? Please describe.

Speed up writing a Style Selector.
When Copy Selector using [DevTools] treeview context menu, it put text like this in clipboard:

FluentAvalonia.UI.Controls.NavigationView#NavView.Store /template/ Avalonia.Controls.ScrollViewer#FooterItemsScrollViewer

Describe the solution you'd like

When Copy Selector using [DevTools] treeview context menu it put text like this in clipboard:

Describe alternatives you've considered

see AvaloniaUI/AvaloniaVS#448

Additional context

No response