Add logos/images for the listing in Microsoft Store

This MR contains that part of !1053 which adds Microsoft Store-specific logos/images and corresponding custom values in the AppStream data.

For details, where the logos are used see

https://learn.microsoft.com/en-us/windows/apps/publish/publish-your-app/screenshots-and-images?pivots=store-installer-msix#store-logos

and for details, where the "16:9 Super Hero Art" image is used, see

https://learn.microsoft.com/en-us/windows/apps/publish/publish-your-app/screenshots-and-images?pivots=store-installer-msix#windows-10-and-xbox-image-169-super-hero-art