Added jotai (#14)

* Added jotai

* cache settings by using jotai state

* use hydrateAtom with SSR

* remove useSettings

* fix test

components/jotai-hydrate.tsx

@@ -0,0 +1,16 @@
+'use client'
+
+import { settingsAtom } from "@/lib/atoms"
+import { useHydrateAtoms } from "jotai/utils"
+import { Settings } from "@/lib/types"
+
+export function JotaiHydrate({ 
+  children,
+  initialSettings
+}: { 
+  children: React.ReactNode
+  initialSettings: Settings 
+}) {
+  useHydrateAtoms([[settingsAtom, initialSettings]])
+  return children
+}