use zustand context instead of react context for provider

[talentlessguy]

this PR needs to be tested and reviewed bc it probably doesn't work, but the idea is that we should use zustand/context instead of React context bc it's more performant and we already use zustand in w3r

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[talentlessguy]

@NoahZinsmeister could you take a look at this please? and test if it works / add required changes

[NoahZinsmeister]

is the zustand context really that much more performant than react?

per the latest (v4) docs, seems like the native react context is recommended: https://github.com/pmndrs/zustand#react-context. admittedly, in that example the value of that context is a zustand store, not "raw" data, but i still can't imagine it's that much better.

however, if it is, i'd be willing to pass down a store.

[talentlessguy]

ok got it, then I'll close the PR