Slider's increase and decrease buttons do not work when using the keyboard

[martintabakov]

Bug report

When the Slider's increase and decrease buttons are focused, there's no key to change the Slider's value.

Workaround: https://dojo.telerik.com/UXoCoBuX/8

Reproduction of the problem

1. Open the Keyboard Navigation demo - https://demos.telerik.com/kendo-ui/slider/keyboard-navigation
2. Focus the Decrease button
3. Try pressing space/enter key

Current behavior

The Slider's value cannot be changed through the keyboard when the buttons are focused

Expected/desired behavior

You should be able to change the value through the keyboard

Environment

• Kendo UI version: 2024.1.319
• Browser: [all]