Add Immutability support

[dougg0k]

Hey,

Nice lib.

Maybe you could add immutability support to it, possibly optionally.

https://mutative.js.org/

https://github.com/mutativejs/zustand-mutative

[mawebdev]

Hey @dougg0k, thank you!
I'll take a deeper look at your suggestion. Maybe we could integrate is as a plugin or addon. I don't think it makes sense to integrate into the core though.

I'll convert this issue to a discussion if you don't mind.

[dougg0k]

Sure.

Yeah, that's why I mentioned optionally. It could be something as optionalDependencies, making it even simpler, if one added the dependency, it would be automatically enabled (it still could be in the code, just implemented in a separated file, waiting for the optional dep), or maybe through an option, whatever your prefer. Or as you said, something external.