[ListView] Incorrect loading indicator overlay height when the component is scrollable

[kimiakh]

Describe the bug
The loading overlay only applies to visible items in the Kendo ListView and not the rest of the items when scrolling is enabled.

To Reproduce

Open the following example and scroll the ListView component:
https://stackblitz.com/edit/angular-feqwba?file=src%2Fapp%2Fapp.component.ts

It seems that the div mask for the loader takes only the component height into consideration and not the whole item list.

Screenshots