Add an item counter to inventory

It could be placed next to the Name (999) heading. Clicking on the Name column would sort by Enchanted. Then the counter could display the number of Enchanted items.

<img width="299" height="186" alt="Image" src="https://github.com/user-attachments/assets/f19cf93e-5a57-4466-ab1c-4b381b4b1bf7" />