🐛 This bug was almost 3 years old omg (and it was introduced on my bday)

Fix boundary condition in slot check to prevent out-of-bounds access.

Author: MarcusSlover

src/main/java/com/marcusslover/plus/lib/item/MenuManager.java

@@ -115,7 +115,7 @@ public void onClick(InventoryClickEvent event) {
         ClickContext genericClick = canvas.genericClick();
         handleOnClick(event, canvas, item, genericClick);
 
-        if (slot > size) {
+        if (slot >= size) {
             ClickContext selfInventory = canvas.selfInventory();
             handleOnClick(event, canvas, item, selfInventory);
             return;