Implemented item combination system

Grid Warriors: Battles

Manage the shared inventory of your party of adventurers and send them out to fight against other players in this roguelike auto-battler. Combine the items you collect on your way to make more powerful ones, and change their shape on the forge to exploit the grid bonuses to the fullest!

In addition to changing the shape of items, the forge now also allows you to combine certain items to make better ones. A new button has been added in the forge to see the "recipes" available. A handful of new items with their recipes have been added (including some plants and potions), and many more will be added in the future.