Implement preview token for oss (#23)

lib/hooks/use-local-storage.ts

@@ -0,0 +1,24 @@
+import { useEffect, useState } from 'react'
+
+export const useLocalStorage = <T>(
+  key: string,
+  initialValue: T
+): [T, (value: T) => void] => {
+  const [storedValue, setStoredValue] = useState(initialValue)
+
+  useEffect(() => {
+    // Retrieve from localStorage
+    const item = window.localStorage.getItem(key)
+    if (item) {
+      setStoredValue(JSON.parse(item))
+    }
+  }, [key])
+
+  const setValue = (value: T) => {
+    // Save state
+    setStoredValue(value)
+    // Save to localStorage
+    window.localStorage.setItem(key, JSON.stringify(value))
+  }
+  return [storedValue, setValue]
+}