Show keygrips

[dievilz]

I would love to see the keygrips inside the TUI. That way, I think this program would be even more efficient than already is, at least for me 🤘🏻. And include the respective setting in the config. file too.
I don't think this feature is implemented and I don't know if it is out of scope, but still I'll make the request 😅.
I would love to contribute and make a pull request but sadly I know nothing about Rust :c