Why is <c-h> not supported as a keybind?

**Topic**
I was wondering why ctrl-h is not a supported keybind? Is there a limitation that I may not be aware of?

**Your thoughts**
This would be a nice to have, when I was configuring my keybinds I stumbled upon this limitation. Out of curiosity I wanted to know why this isn't a possible.

Love this project btw, don't want to come off as someone who is just nagging.