refactor: remove pnpm, fix tests

packages/react-charm/default.project.json

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+{
+	"name": "ReactCharm",
+	"tree": {
+		"$path": "src"
+	}
+}

packages/react-charm/src/init.luau

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+local Charm = require(script.Parent.Charm)
+local React = if script.Parent:FindFirstChild("react")
+	then require((script :: any).Parent.react) :: never
+	else require(script.Parent.React)
+
+local listen = Charm.listen
+local useEffect = React.useEffect
+local useState = React.useState
+
+--[=[
+	A hook that subscribes to changes in the given atom or selector. The
+	component is re-rendered whenever the state changes.
+	
+	If the `dependencies` array is provided, the subscription to the atom or
+	selector is re-created whenever the dependencies change. Otherwise, the
+	subscription is created once when the component is mounted.
+	
+	@param callback The atom or selector to subscribe to.
+	@param dependencies An array of values that the subscription depends on.
+	@return The current state.
+]=]
+local function useAtom<State>(callback: () -> State, dependencies: { any }?): State
+	local state, setState = useState(callback)
+
+	useEffect(function()
+		return listen(callback, setState)
+	end, dependencies or {})
+
+	return state
+end
+
+return {
+	useAtom = useAtom,
+}

packages/react-charm/wally.toml

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+[package]
+name = "littensy/react-charm"
+version = "0.3.0"
+registry = "https://github.com/UpliftGames/wally-index"
+realm = "shared"
+
+[dependencies]
+Charm = "littensy/charm@^0.10"
+React = "jsdotlua/react@^17"