feat(documentation): add accessibility reference relationship stories and demo components

[myrta2302]

📄 Description

This PR adds documentation for the following cross-component referencing scenarios under the (private) Accessibility section:

1. for / label
2. aria-labelledby
3. aria-describedby
4. role="list"

To support these examples, a new demo-components folder has been added under documentation/src, containing the following native web components:

• demo-button
• demo-label
• demo-list-item-group
• demo-list-item
• demo-list
• demo-span
• demo-target

📝 Checklist

• ✅ My code follows the style guidelines of this project
• 🛠️ I have performed a self-review of my own code
• 📄 I have made corresponding changes to the documentation
• ⚠️ My changes generate no new warnings or errors
• ✔️ New and existing unit tests pass locally with my changes

[changeset-bot]

⚠️ No Changeset found

Latest commit: b64f4e1

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[swisspost-bot]

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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	eslint-plugin-jest@​28.11.0
	ts-jest@​29.2.5

View full report

[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