Layout builder off-canvas positioning problem when resizing browser

Problem/Motivation

When adding/editing a block in layout builder, if you resize the browser then the off-canvas sidebar doesn't re-position itself correctly.

Steps to reproduce

1. use Drupal 10.0.9, or 9.5.9
2. enable layout builder and turn it on for a content type
3. create a page using the layout builder content type
4. edit the layout for the page
5. click "Add section"
6. resize the right side of browser

Expected behaviour

The layout builder sidebar should move with the right side of the browser.

Actual behaviour

Sidebar stays in one place, or jumps around.

I think it has something to do with this change: https://git.drupalcode.org/project/drupal/-/commit/e2d11b5fff7ba50dbb18f...