* format js files using prettier
Used the following command to format the files
prettier --write "browser/app/js/**/*.js"
* fix failing unit tests in browser
- upgraded react from v16.2.0
- upgraded react-router to v4.2.0 and re-writen the routes
- using prettier to format the code
- added jest to unit test components/reducers/selectors
This provides a skeleton to start of with. Only basic unit test
cases are added, remaining needs to be added.
In terms of functionality, it provides login, listing and searching
buckets. Remaining functionalities will be added in upcoming patches.
