[Proposal]: New `StoragePickers` features `WinAppSDK 2.0`

[Zakariathr22]

Issue type

sample request

Which version of the app?

WinUI 3 Gallery

Description

No response

Screenshots

No response

Windows version

No response

Additional context

No response

[niels9001]

This is probably a good starting point: https://github.com/microsoft/WindowsAppSDK-Samples/blob/release%2F2.0-experimental/Samples%2FStoragePickers%2Fcs-sample%2FMainWindow.xaml.cs