Sending - EVM and UTXO chains

[0xdef1cafe]

Overview

Update sending for EVM and UTXO-based chains to support multiple accounts.

References and additional details

• https://github.com/shapeshift/web/blob/develop/src/components/Modals/Send/hooks/useFormSend/useFormSend.tsx#L29
• https://github.com/shapeshift/web/blob/develop/src/components/Modals/Send/Form.tsx#L48-L49

Acceptance Criteria

• Implement account selection behind a feature flag that defaults to account 0 if not enabled.

Need By Date

No response

Screenshots/Mockups

No response

Estimated effort

1 day

[reallybeard]

Receive https://www.figma.com/proto/OHbVrAVaV2xQWUsq0nKzGm/ShapeShift-Library?node-id=1859%3A7412&scaling=min-zoom&page-id=1696%3A6577

Send https://www.figma.com/proto/OHbVrAVaV2xQWUsq0nKzGm/ShapeShift-Library?node-id=1887%3A7353&scaling=min-zoom&page-id=1696%3A6577