Allow currency selection on "Send" screen

[danfinlay]

I know we've talked about this again, but I think it's worth revisiting.

Also suggested again by a user in #3413, proposed with mockups in this google doc.

[bdresser]

probably needs to come after #3824

[snreynolds]

If we could allow token selection on the send screen, it could give us room to add the token balances on that screen as mentioned in #4772

[danjm]

@danfinlay can this be closed in favour of #4772 / #4903? Or is this a suggestion that we should allow users to select on the send screen the fiat currency that their ETH / tokens are converted to?

[danfinlay]

Nope, it's the asset being sent. Closing in favor of #4772/#4903.

[ghost]

Do we have the token selection functionality now? Currently, only ETH shows up during the transfer option. This would mean that if I have other tokens and 0 ETH then I get a prompt saying 'insufficient funds'

[bdresser]

@sukuroy this functionality isn't in production yet. The error message you mention is fixed in #4694, and #4772 tracks allowing the user to swap the token they're sending from the currency screen itself.