Language menu pointing to related pages rather than site root

[rseabra]

I'm very new to hugo and go, so it's still hard to propose patches, but I think it would be nice on multi-lingual posts to have the menu point to the same page but in the other languages rather than to /WEBSITE/pt/ or /WEBSITE/en.

Eg...

EN: https://blog.1407.org/2022/11/02/teatro-e-urgente-o-amor/
Check menu, points English to /en/ and Português to /pt

It would be nice if en pointed to the current page and /pt to the portuguese version generated at...

PT: https://blog.1407.org/pt/2022/11/02/teatro-e-urgente-o-amor/

I suspect this won't be hard to do, I'm just not comfortable with go yet.

Is it possible (and easy) to do?

[rseabra]

Hey, my PR #399 implements this. :)