refactor(docs): remove example-styles project

[danielleroux]

🆕 What is the new behavior?

Follow up of #1471 which needs to be merged first ‼️
Remove examples-styles and reuse existing html-test-app to host css data

🏁 Checklist

A pull request can only be merged if all of these conditions are met (where applicable):

• 🦮 Accessibility (a11y) features were implemented
• 🗺️ Internationalization (i18n) - no hard coded strings
• 📲 Responsiveness - components handle viewport changes and content overflow gracefully
• 📄 Documentation was reviewed/updated (pnpm run docs)
• 🧪 Unit tests were added/updated and pass (pnpm test)
• 📸 Visual regression tests were added/updated and pass (Guide)
• 🧐 Static code analysis passes (pnpm lint)
• 🏗️ Successful compilation (pnpm build, changes pushed)

👨‍💻 Help & support

[changeset-bot]

⚠️ No Changeset found

Latest commit: 7ac06af

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[github-actions]

Report of strictNullChecks (strictPropertyInitialization) check

Typescript check

You decreased the total number of errors in PR branch by 1 🎉

ESLint check

Total ESLint warnings are the same in both branches

[sonarcloud]

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 SonarCloud