Ambire Login SDK integration + Login Screen

[ivopaunov]

Integrate Ambire Login SDK

• [x] SDK integration
• [ ] Context with hooks for managing account state TODO// multiple tasks here when we know what we will need - balances, pending calls/txns, etc.
• [x] #5

[ivopaunov]

backend login routes: https://github.com/AmbireTech/adex-backend/blob/development/src/routes/dsp.ts how to auth: https://github.com/AmbireTech/adex-backend/pull/105

@Maskln

[ivopaunov]

There will be no need for sdk balances at the moment as we\ll use backend balances for the alpha