Show prices as a range if no set parameter is passed #150
Description
Currently the bot appears to only scrape the first prices for the first set listed on Scryfall if no set parameter is passed.
Ex: !price Sliver Queen only returns the TIX
Ideally it should output something like:
$395.24 / 223.97€ / 0.56 - 1.41 Tix
Where each currency is listed as a range of the lowest and highest value, but only display the range if min/max are not the same value.