use react native community async storage

package.json

@@ -20,6 +20,7 @@
   },
   "dependencies": {
     "@nartc/react-native-barcode-mask": "^1.1.9",
+    "@react-native-community/async-storage": "^1.9.0",
     "@react-native-community/masked-view": "0.1.6",
     "@react-native-community/push-notification-ios": "^1.1.1",
     "@react-native-community/slider": "^2.0.9",

src/managers/AsyncStorageManager.js

@@ -1,6 +1,6 @@
 // @flow
 
-import {AsyncStorage} from "react-native";
+import AsyncStorage from '@react-native-community/async-storage';
 
 /**
  * Singleton used to manage preferences.