Limit shop owner name and item name length

The code modifications limit the length of the shop owner's name and the item name by using a substring operation in NameChecker.java and ItemChecker.java. The aim is to enhance compatibility and prevent potential display or processing issues due to excessively long names.

src/main/java/com/Acrobot/ChestShop/Listeners/PreShopCreation/ItemChecker.java

@@ -49,6 +49,6 @@ public static String getSignItemName(ItemStack itemStack) {
             }
         }
 
-        return itemName;
+        return itemName.substring(0, Math.min(itemName.length(), 15));
     }
 }

src/main/java/com/Acrobot/ChestShop/Listeners/PreShopCreation/NameChecker.java

@@ -29,6 +29,6 @@ public static void onPreShopCreation(PreShopCreationEvent event) {
         } else
             name = NameManager.getNameFor(player);
 
-        event.setOwnerName(name);
+        event.setOwnerName(name.substring(0, Math.min(name.length(), 15)));
     }
 }