[shared] Documentation

[ascariandrea]

Provide the documentation for the following modules/code:

• Providers
  • api.provider.ts
  • browser.provider.ts
  • bs58.provider.ts
  • db.provider.ts | mongo.provider.ts
  • localStorage.provider.ts
  • parser.provider.ts
• Extension
  • Background
  • App
  • Popup
  • Hub