add fab for ext

src/hooks/Fab.js

@@ -0,0 +1,11 @@
+import { STOKEY_FAB } from "../config";
+import { useStorage } from "./Storage";
+
+/**
+ * fab hook
+ * @returns
+ */
+export function useFab() {
+  const { data, update } = useStorage(STOKEY_FAB);
+  return { fab: data, updateFab: update };
+}