[Satosa][Bug] Incorrect QR code value in cross device flow

[Zicchio]

The cross device flow containg a QR code with the wrong value: the link host is not satosa-pyeudiw itself but it should be the target wallet application.
This is the line of code with the incorrect behaviour

eudi-wallet-it-python/pyeudiw/satosa/default/openid4vp_backend.py

Lines 215 to 218 in 6a658f2

	# Cross Device flow
	res_url = f'{self.client_id}?{url_params}'
	result = self.template.qrcode_page.render(

The QR code should be a deep-link/universal-link/whatever much like in the same device flow as otherwise the user would not be able to open the holder app.
In fact, it's the same link.

See
https://italia.github.io/eudi-wallet-it-docs/versione-corrente/en/relying-party-solution.html#authorization-request-details

[peppelinux]

Confirmed, it must use the url configured here:

https://github.com/italia/eudi-wallet-it-python/blob/dev/example/satosa/pyeudiw_backend.yaml#L64