feat(UI): Visible Inventory

[Golbolco]

Acceptance Criteria:

• Create a UI space for all items a player is holding, under the Actions tab
• Use the item icons created by Ammico under the images folder
• Clicking on an active item (ex. a gun) should enable a dropdown to use the item on another player
• Items should display their total number in the left hand corner, a la role icons in a setup's UI
• Create a "hidden" function for items that are not meant to be used as traditional items (ex. handcuffs, snowstorm items, etc)