Use Prettier JS (#5017)

* Adds prettier

* Run lint before tests

src/cache.js

@@ -1,4 +1,4 @@
-import {InMemoryCache} from './Adapters/Cache/InMemoryCache';
+import { InMemoryCache } from './Adapters/Cache/InMemoryCache';
 
-export var AppCache = new InMemoryCache({ttl: NaN});
+export var AppCache = new InMemoryCache({ ttl: NaN });
 export default AppCache;