Unable to select numbers if it is a hyperlink

### Describe the bug

When selecting a hyperlinked number the selection starts at the beginning of the line instead of the place where the mousebutton is clicked.

https://github.com/user-attachments/assets/2b3227e1-4777-4638-8981-571e461d4aaa

Link to application: https://appinstaller.xelion.com/winapp/v8n/Xelion-Package.appinstaller
Soon also in the Windows Store: https://apps.microsoft.com/search?query=xelion

Used version: Windows App SDK 1.7.x or latest Windows App SDK 1.8.0: 1.8.250907003

### Why is this important?

The user needs to apply a workaround. For example by selecting all text, copy to notepad, and then select the right number.

### Steps to reproduce the bug

1. Enter chat message with a number in the middle.
2. Mouse down just before the hyperlinked number.
3. Mouse up after the hyperlinked number.

### NuGet package version

WinUI 3 - Windows App SDK 1.8.0: 1.8.250907003

### Windows version

Windows 11 (24H2): Build 26100

### Additional context

Used WinUI components or sourcecode information is not available to me as user.