TabView tearing creates external tabs, causing program crash

### Describe the bug

Using a stylus, click the plus sign to create a new TabViewItem. Long press by stylus or touch and drag the header of the TabViewItem downwards apart from the main window and form a new window. the program crashes.

### Why is this important?

Dragging tab apart from the window is a high frequency user behavior which leads to a frequent app crash which will harm user experience and reputation of new OS.

### Steps to reproduce the bug

1. Using a stylus, click the plus sign to create a new TabViewItem,
2. Long press and drag the header of TabViewItem by stylus or touch downwards to tear apart the tab,

### Actual behavior

App crashes.

### Expected behavior

The program does not crash, and the torn tab displays normally.

### Screenshots

_No response_

### NuGet package version

None

### Windows version

_No response_

### Additional context

_No response_