copy address button when connecting wallet really needed?

Hi all, here some feedback for Common on testnet:

- Could there possibly be a warning when max TZERO is selected in a swap? So people won't by mistake leave nothing in the wallet for further transaction fees.

- I tried to provoke a failed swap by using a very low slippage 0.0001%. The transaction still was successful, even though I was swapping > 25 TZERO (but maybe it's just because the pool is that huge)

- When logging in, it's not very intuitive for me as by accident, I always click on the copy address button and I wonder, if that function is really necessary in this screen.