uui-popover-container scroll event does not work when nested

[JesmoDev]

Popover container now listens to all parent scroll containers to make sure that a position update is triggered when scrolling.
Before it only listened to the body. Which meant that the popover would not update it's position if inside another scroll container.

Adds story to visualise the fix

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Chore (minor updates related to the tooling or maintenance of the repository, does not impact compiled assets)

Checklist

• If my change requires a change to the documentation, I have updated the documentation in this pull request.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.

[github-actions]

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[iOvergaard]

Do we perhaps not need to unsubscribe the scroll listener, e.g. on disconnectedCallback?

Is there any chance the scroll listener could be registered as a passive listener?

[JesmoDev]

Do we perhaps not need to unsubscribe the scroll listener, e.g. on disconnectedCallback?

Is there any chance the scroll listener could be registered as a passive listener?

Great suggestion. This has been added

[github-actions]

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