[Enhancement] Selling currency using the ratio format

[MIKUiqnw0]

The ratio currency layout defined on this page at poe.trade is unable to be set correctly in Acquisition as the field only parses numerical input. Additionally, you are unable to set prices on a set number of stacks of currency; the program automatically sets all of that currency in the specific inventory to the value given.

That said, the scrapper of both poe.trade and the official site seem to take stock into account correctly so long as the forum post contains all stacks of the particular currency in its post's contents. I achieved this by modifying the post manually: