T1823

I introduced a bug when I reconfigured the address display. Cashtab will copy the correct address if you click the QR code or the address, however it is displaying a repeated string in the actual address. Users who manually select that address will get the wrong thing.

This diff corrects the oversight.

npm start, click the QR code to copy the address and paste it somewhere, manually highlight the address and copy paste it, verify they are the same; do the same with etoken