Players on an IPv6 connection now get the payment page for their own country when they buy Moonglass.
Other changes
When the country is not known, the checkout passes the player's IP address to Xsolla for both IPv4 and IPv6, so Xsolla can pick the right country, currency and payment methods. Before, IPv6 players always got Germany.
If Xsolla does not accept the address, the checkout tries again without it, as before, so buying keeps working.
