Add support for key to key remapping

[JustSimplyKyle]

Describe your feature request

I wanna remap a key to another key, instead of remapping a key's action alone
The reason for this is because I'm a colemak user, and using qwerty homerow on colemak is a pain.
The following is vim's way of handling this problem

Additional Context

#3367
This issue demonstrate what a pain is to rebind four keys, imagine having to remap your entire keyboard

[Omnikar]

Duplicate of #1383.