A better way to handle using currency in maps

RE: https://www.pathofexile.com/forum/view-thread/3779014

Instead of giving each interactable object (strongbox, essence, ...) a set of "QoL" action buttons that could interrupt player inputs, allow us to keybind currency instead.

Pressing the relevant keybind would then apply the bound currency (e.g. orb of alchemy) to whatever object (e.g. ornate strongbox) is under the cursor, which is in my opinion a far better approach for users if no technical limitations prevent this functionality.