Add condensed prestigious coins/Increase their stack limit

Currently, with their stack limit of 200, Prestigious coins make for a bad currency when making high value trades. With an average value of ~2mil, this puts a single inventory slot at potentially 400mil. Since there's only 9 slots in a trade window, it means that the highest value you can add there to be 3.6bil in prestigious coins + 2.1bil in mesos, or 5.7bil from generally accepted currency.

That's not really an adequate number considering there are hundreds of items with higher value.

Alternatively, I suppose Bag 5's could be used as a currency? It's just weird that the rng bag is probably the only high value item with potential to be used as a currency, and it's weird that the bags become a worse currency by opening them, and lose value when trying to make them back into a high value currency.