Use readline for q chat REPL, or otherwise respect INPUTRC

[WillChilds-Klein]

Many REPLs support configuration via $INPUTRC. Integrating readline/libedit allows e.g. bash, python, and some coljure REPL users to do fun things like use vim bindings and set custom bindings.

[mschrage]

Interesting. I like this. We currently expose a setting that allows configuring the readline between emacs keybindingd and vim, but definitely more we can do here

[mschrage]

Maybe related to #1035