Dragging a Tab across a DPI doesn't re-scale the tab item during the drag

[zadjii-msft]

Describe the bug

A picture says 1000 words, however, I couldn't get the screen recording to span across monitors. So imagine that I'm starting the drag from another window, on a 100% scaled monitor, to this 150% scaled one

You'll note, the tab didn't resize itself.

Steps to reproduce the bug

• Create an app with dragable tabs
• Open two windows of the app on separate DPIs
• Drag a tab from one DPI to the other

Expected behavior

It resizes itself as it goes, so that it's the right scaling on the new monitor

Screenshots

No response

NuGet package version

WinUI 2 - Microsoft.UI.Xaml 2.8.2

Windows version

Windows Insider Build (xxxxx)

Additional context

No response

[codendone]

Note: The same issue applies to WinUI (see #9776). I believe this is an OS issue, outside of WinUI2/WinUI3.