Change Details

`npm test` `npm start`, navigate to send screen. Button should be disabled. Enter valid data. Button enabled.

`npm test` `npm start`, navigate to send screen. Button should be disabled. Enter valid address. Button still disabled. Enter valid amount. Button enabled. Enter valid multisend, valid msg input.

`npm test` `npm start`, navigate to send screen. Button should be disabled. Enter valid data.address. Button still disabled. Enter valid amount. Button enabled. Enter valid multisend, Button enabledvalid msg input.