Add lnurldevices items to the tpos

[cos-it-is]

A new feature request to show switch lnurl items within the tpos, so users could pay with NFC. It would be good to be able to add switch lnurlp's and other things to the 'marketplace' so all payment avenues are accessible by the tpos and visible to a vendor to take payments for them manually on a device.

[prusnak]

This should be implemented the other way around - PoS with LNURLs should be added to lnurldevices extension.

[DoktorShift]

A new feature request to show switch lnurl items within the tpos, so users could pay with NFC. It would be good to be able to add switch lnurlp's and other things to the 'marketplace' so all payment avenues are accessible by the tpos and visible to a vendor to take payments for them manually on a device.

If doing so maybe give them all the same "category" by default to make it easy to filter them inside the pos.