How can sticky and center horizontally

[abhisavadiya]

Issue type

sample request

Which version of the app?

WinUI 3 Gallery

Description

How can we sticky at top Pivot item header ? How can we align center horizontally of pivot item header?

Screenshots

Windows version

Windows 10 22H2 (19045)

Additional context

No response

### Tasks
- [ ] How can we sticky at top Pivot item header ?
- [ ] How can we align center horizontally of pivot item header?