Show hostname if in a remote ssh session

[Justinzobel]

I've just installed this and it's great! I'd love to see the prompt detect if it's in a remote session, and if so display prominently display the hostname.

[bhutch29]

It's a very naive implementation, but I hacked in this behavior here: https://github.com/jorgebucaran/hydro/compare/main...bhutch29:hydro:main#diff-ebbb032ad65fbd115a66b240c226da7fe161672f19432bd590aeb8ee6f0e990e