update to the collector and bandage handling issues at launch.

Fixes
Fixed an issue preventing stacked treasure items from being sold correctly to the Collector.
Fixed an issue where purchasing Bandages could incorrectly display a "Not enough gold" message despite the purchase succeeding.
Improved Collector inventory handling for stacked items.
New
Added a Sell All command to quickly sell every valuable item the Collector is willing to purchase.

Thank you to everyone who reported bugs after launch. This update focuses on improving inventory handling and fixing several issues with the Collector. More content and improvements are on the way.