chore(zustand): upgrade to v4

packages/core/src/contexts/RFStoreContext.ts

@@ -0,0 +1,8 @@
+import { createContext } from 'react';
+
+import { createRFStore } from '../store';
+
+const StoreContext = createContext<ReturnType<typeof createRFStore> | null>(null);
+
+export const Provider = StoreContext.Provider;
+export default StoreContext;