Version 0.39.1

Fixed donations and exchanges failing with “Failed to fetch” on a browser-extension wallet.

The wallet opened, showed the fee and took the approval — and then it died. The screen that talks to browser-extension wallets was pointed at the Sui project's public fullnode while everything else in NMTS reads from the mirror that still answers, and that address is also not in this site's list of hosts the page may contact, so the browser blocked the call before it left and that is what produced the bare message. The built-in wallet was never affected, because it already used the mirror. There is now one function every part of NMTS takes the address from, and a test that fails if anything picks its own again.