bug#59774: Activating conda environments breaks the prompt because bash eats PS1

[Hugo Buddelmeijer via Bug reports for GNU Guix]

I've created https://codeberg.org/guix/guix/issues/5269 to improve the 
conda experience, with a link to this ticket.

So while this prompt-eating problem still applies, I suggest we close 
this ticket and discuss the problem more holistically on codeberg.