The sizes of items within dialogs aren’t rendered correctly when using modified “width” and “height” values

The Bug:

The sizes of items within dialogs aren’t rendered correctly when using modified “width” and “height” values.

It seems that only the hitbox of the item within the dialog is changed.

Steps to Reproduce:

1. Display the appropriate dialog by using the command provided below.

   /dialog show @s {"type":"minecraft:notice","title":"MC-299877","body":[{"type":"minecraft:item","item":{"id":"minecraft:diamond","count":64},"description":"This is 64 Diamonds","show_decorations":true,"show_tooltip":false,"width":100,"height":100}]}

2. Click on the diamond and observe its width and height.

Observed Behavior:

The sizes of items aren’t rendered correctly. It appears that only the hitbox of the item is adjusted, while the actual item and item count themselves remain the same no matter the specified values.

Expected Behavior:

The sizes of items would be rendered correctly.