Send flow

[msafi]

The send flow could be:

1. Show initial page where user can enter
   • Amount
   • Address
   • Select fee rate (fast, medium, slow)
2. Show review page where the user can review the details before sending. The details could include:
   • Amount
   • Address
   • Total fee amount
3. Show confirmation page where we tell the user their transaction ID after having broadcasted it