Uses jQuery to scroll since setting document.body.scrollTop does not work in firefox

What does this MR do?

Replaces vanilla with jQuery to control scroll because document.body.scrollTop does not work the same in all browsers, same goes for checking if the scroll is at the bottom. With jQuery it works the same in all browsers.

$().scrollTop covers support for all browsers

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Tests
  • All builds are passing
• Review
  • Has been reviewed by Frontend
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

Closes #34492 (closed)