Gets the NUI image path for an item, with fallback to a default image if none is found.
Gets the NUI image path for an item. The function uses a fallback system: first checks if the item has a custom image field, then tries to find .png or .webp files, and finally falls back to the default box.webp image.
The NUI image path (e.g., “nui://jaksam_inventory/_images/bread.png”). Always returns a valid path, using fallback to box.webp if the item doesn’t exist or no image is found