Add failing test case for container width change

[gwak]

This PR introduces a test case to demonstrate an issue that occurs when the width of the items container element changes. The container's width may be affected by:

1. Viewport changes: Adjustments in the viewport size can cause the container width to update dynamically.
2. Flexbox wrappers: When the container is part of a flexbox layout, its width can vary based on the behavior of the flexbox.

The test case highlights how these scenarios impact the functionality, as showcased in the example linked below.

Enregistrement.de.l.ecran.2024-11-29.a.23.55.19.mov

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