fix(components, documentation): z-index on header + fake content on header preview

[leagrdv]

…eader preview

[changeset-bot]

🦋 Changeset detected

Latest commit: eefd43b

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 16 packages

Name	Type
@swisspost/design-system-components	Patch
@swisspost/design-system-documentation	Patch
@swisspost/design-system-components-angular-workspace	Patch
@swisspost/design-system-components-react	Patch
@swisspost/design-system-components-angular	Patch
@swisspost/design-system-nextjs-integration	Patch
@swisspost/design-system-styles	Patch
@swisspost/design-system-tokens	Patch
@swisspost/design-system-intranet-header	Patch
@swisspost/design-system-icons	Patch
@swisspost/design-system-migrations	Patch
@swisspost/design-system-styles-primeng	Patch
@swisspost/internet-header	Patch
@swisspost/design-system-intranet-header-workspace	Patch
@swisspost/design-system-styles-primeng-workspace	Patch
@swisspost/design-system-intranet-header-showcase	Patch

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[swisspost-bot]

Related Previews

• https://preview-4367--swisspost-design-system-next.netlify.app

[alizedebray]

Can you add a max-height to the header story so that it is scrollable? Currently the sticky behavior is still not visible.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[alizedebray]

The header's behavior is not correct in the story: it is sticky when you start scrolling but disappears afterwards. Can you please investigate this?

The behavior is correct on the full screen preview.