Offline Functionality

[EmilyNecciai]

• [x] Use IndexedDB to add offline functionality.
• [x] Add a service worker to your application (don't use WebPack)
• [x] You should add your idb.js file to the public/js/ directory of your application.
• [x] You should add your service worker to the root of the public/ directory of your application.

Once you’ve updated the existing budget tracker, it should provide the following functionality:

• The ability to enter deposits offline.
• The ability to enter expenses offline.
• Offline entries should be added to the tracker when the application is brought back online.