Pimp redeem token function

[denniswell]

Add max button and show expected investment value

[lucasvo]

This should not be implemented until we have the new eth widgets in axis (centrifuge/axis#54)

[lucasvo]

@acolytec3 are you implementing this with the new widget?

[acolytec3]

The messaging isn't in the new widget but the concept of setting a max amount is there with the "set max" button I built as part of the widget. It just looks a little different than what's in that mockup. I should be able to if the amount in DAI is available in the code today or can easily be derived.

[lucasvo]

Yes, you can ignore the message "You will receive in exchange" and take the design from the widgets we have. The design is outdated in this ticket.

@ilinzweilin how can the max be determined in the code today?

[ilinzweilin]

in the redeem container, you find the values tokenBalance and maxRedeemAmount.
max is the smaller of these two values -> min(tokenBalance, maxRedeemAmount)