Updated folder picker for Image file path

[Tom Palmer]

Stefan - you're probably aware of this but just in case ...

I see that the folder picker in Options>Imaging>Image file path is using an older dialog to force selection of a folder. For the Robocopy Start instruction pickers, I found Microsoft-WindowsAPICodePack which provides a modern UX for a folder picker. Might be nice to update if you get a chance.

https://www.nuget.org/packages/Microsoft-WindowsAPICodePack-Core/
https://www.nuget.org/packages/Microsoft-WindowsAPICodePack-Shell/

[Stefan B]

.NET 8 will introduce a native folder picker for WPF. so in future we can use that instead.

[Stefan B]

Will be fixed by https://bitbucket.org/Isbeorn/nina/pull-requests/1565