fix: type-safe overwriteCommand

[KuznetsovRoman]

No description provided.

[shadowusr]

I'm ok with this solution as is.

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Thinking out loud, this code shouldn't be at hermione at all. Also, this gives user an illusion of being type-safe, because you can overwrite non-existent commands, which are methods of browser object. When there's just string, you essentially let users know that it's their responsibility to check command name.

Also, I'd have a look at the SetParameterType helper in type-fest, looks like it does exactly what we need — changes one parameter type, while keeping all other things intact.

[KuznetsovRoman]

type-fest

While we have it in devDeps only, it won't work unless user has it.