Feature Request: add nerdfont choices

[jessebot]

Describe the feature you'd like, and why

maybe someone wants a different nerdfont. We should have a param in the config file that accepts a list of fonts, and default to Hack and Mononoki.

Describe alternatives you've considered, if any

this is complicated on linux because installing fonts there is harder, so we can't really allow any kind of font, unless they have another repo for that (we use the nerdfonts repo and install.sh script right now)... 🤔