1. Add Inventory function, players can open Inventory by pressing the I key. Randomly dropped items in the map can be picked up and equipped
2. Inventory, Map, and Quest have been integrated into the consent interface. Simultaneously, press the M key to open the map and the J key to open Quest, keeping them unchanged
3. The Save Game feature has been developed and currently only supports manual storage of games. Don't forget to save the game when players exit
4. Optimization of UI interface
