Improve the trading tab

[maxjuno]

we should improve the trading page, when trading this UST pair for example the user cannot see how much he is paying for a single ATOM. He need to manually calculate the price 1000/33.93114 = 29.47

this info is only partially helpful
we are basically showing ATOM per UST but for a trader it would be helpful to also show UST per ATOM

for example like this

for reference
if you just change the arrows there is a price difference