Don't reset inventory tag filter after selling an item

When using the Inventory menu under the Esc menu, there are a number of filters that can be used to sort your items, which is particularly important with large inventories. However, if you’re trying to sell something under a filter category (e.g. Treasure), the filter clears after the transaction passes through. I don’t see why the game shouldn’t do the opposite, where the filter stays even after the sale occurs.