nostr:npub1mc3fyzafm6shv38mesf05vapyg3dxhxm34u3heqqn7jrze9hlqfqk4nkdg not quite as convenient but you can use the firefox translation tool until it's turned on if you run firefox, basically just highlight the message, right click, translate. it's what i've been using.

https://addons.mozilla.org/en-US/firefox/addon/firefox-translations