Wrong issue destination address

[tomjeatt]

See: https://discord.com/channels/745259537707040778/1185956462346911794

Destination address is wrong. It shows the substrate account rather than the BTC address.

[tomjeatt]

Had a quick look at this—the destination address is the value of userParachainAddress returned from the request data. Doesn't look like we're currently returning the BTC address. The issue request is being constructed in the UI using multiple lib calls (rather than a single lib call to return all the data) so assuming the lib has a method to get the BTC address this should be a UI fix only.