[弩自动装填]auto reload crossbow

当主手上有弩并且背包有箭时，会自动装填。并且，当手中持有弩或者弓时，左键也可以发射了 When the main hand holds a crossbow and there are arrows in the inventory, it will automatically reload. Additionally, when holding a crossbow or a bow, left-clicking can also trigger the shooting function.