Fix extra case of 0 indexing

Author: coderFlameyosFlow

src/main/java/me/flame/menus/menu/BaseMenu.java

@@ -611,7 +611,7 @@ protected void recreateItems() {
         int itemsLength = itemMap.size();
         if (itemsLength == 0) return;
 
-        for (int i = 0; i <= itemsLength; i++) {
+        for (int i = 1; i <= itemsLength; i++) {
             ItemStack item = itemMap.get(i).getItemStack();
             if (item == null || item.getType() == AIR) {
                 inventory.setItem(i, null);