[Suggestion] Allow Function keys without modifiers

[danyhoron]

Hi,

Your lib looks awesome.
I have one suggestion: allow Function keys to be registered without a modifier.
There are situations (like VSCode's F2 to rename) where it's really helpful to have them be registered without a modifier.

Thank you.

[mlrv]

Hi @danyhoron, apologies for the delay in responding, somehow this issue feel through the cracks.

Yes, absolutely! It's something I've already been considering, and should be relatively straightforward to implement. Will most likely come in a future release :)

[amaury-tobias]

I think this can be resolved changing IsValidCombination to some like that

type IsValidCombination<
  T extends { mod: Modifier[]; nonMod: NonModifier[] }
> = T['mod']['length'] extends 0
  ? T['nonMod']['length'] extends 1
    ? true
    : false
  : T['nonMod']['length'] extends 1
  ? true
  : false