[Story] Set up zero knowledge account (from wallet private key)

[ulyanas]

Zero knowledge account is needed in order to send and receive funds in zkBob application. There are three options to create a Zero knowledge account in zkBob app:

1. Create using private key from wallet (not in mockup yet)
2. Create using a new seed phrase
   • Enter your seed phrase to setup account
   • Confirm seed phrase (enter words)
3. Restore existing account using saved seed phrase

• Enter your seed phrase to restore your previously setup account

The first option available to the users is to create a zero knowledge account using a wallet private key. This option doesn't require inputting a seed phrase.