chore(guide): bring guide up to speed

apps/guide/src/contexts/nav.tsx

@@ -0,0 +1,27 @@
+'use client';
+
+import {
+	type PropsWithChildren,
+	type Dispatch,
+	type SetStateAction,
+	createContext,
+	useContext,
+	useState,
+	useMemo,
+} from 'react';
+
+export const NavContext = createContext<{ opened: boolean; setOpened: Dispatch<SetStateAction<boolean>> }>({
+	opened: false,
+	setOpened: (_) => {},
+});
+
+export const NavProvider = ({ children }: PropsWithChildren) => {
+	const [opened, setOpened] = useState(false);
+	const value = useMemo(() => ({ opened, setOpened }), [opened]);
+
+	return <NavContext.Provider value={value}>{children}</NavContext.Provider>;
+};
+
+export function useNav() {
+	return useContext(NavContext);
+}