[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