Update old item matching to use the new ItemMatcher class

src/main/java/com/alttd/playershops/shop/PlayerShop.java

@@ -110,7 +110,7 @@ public class PlayerShop {
     }
 
     public boolean matches(ItemStack item) {
-        return ShopUtil.matches(getItemStack(), item);
+        return ItemMatcher.matches(getItemStack(), item);
     }
 
     public void remove(ItemStack item, int amount) {