How do I get an overlay added behind the kendo-window that will disable the background functions like dialogs do?

[kkamalesh]

Description

How do I get an overlay added behind the kendo-window that will disable the background functions like dialogs do?

Steps To Reproduce

1. open the kendo window using the windowservice.
2. pass the htmlAttributes : {'modal': 'true'} to the kendow window
3. background is not disabled

const windowRef = this.windowService.open({
title: compTitle,
content: compName,
cssClass: "menu-window",
htmlAttributes: {['modal']: "true"},
});

Screenshots or video

Actual Behavior

current behavior is background is not disabled we can click on the screen.

Expected Behavior

background should be disabled but user can see the data.

Browser

Chrome, Microsoft Edge

Browser version

Version 132.0.2957.127

OS type

Windows

OS version

windows 11

Last working version of the Kendo UI for Angular package (if regression).

No response