Using the iconClass property in Grid toolbar configuration leads to extra span

[nelito987]

Bug report

When there is iconClass option set in the Grid toolbar an extra span with 'k-sprite' class is rendered. If icon: 'none' is added to the items configuration, then the additional span does not appear.

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/JkrjieZO
2. Open the overflow menu and inspect the last two items

Current behavior

All items except the last one have the span as in the image below:

The span leads to an extra space.

Expected/desired behavior

There should be no extra spaces when the iconClass option is used.

Wokraround

<style>
    .k-sprite{
      display: none
    }
  </style>

https://dojo.telerik.com/mLcNnDXS

Environment

• Kendo UI version: 2025.2.520
• Browser: [all]