reflect button properties to 'date-dropdown' and 'expanded-search'

[matthiashader]

💡 What is the current behavior?

• date-dropdown has only 'primary' button style (no ghost, outline,.. props)
• expanding-search has only 'primary' button style (no ghost, outline,.. props)
• -> styling button properties are not reflected to the components that utilizes the ix-button

GitHub Issue Number: Closes #1552, [IX-1941]

🆕 What is the new behavior?

• button properties (for styling) are reflected in the components that utilize the ix-button
• button of date-dropdown can be styled like a button
• button of expanding-search can be styled like a button

🎵 Note

• Check naming -> 'button-ghost' okay, or better 'ghost'?
• buttonGhost in expanding-search is defaultwise true, but stencil recommends properties to be false by default -> better to set it to '?' and if not initialised it will get set to true in componentWillLoad?

🏁 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]

🦋 Changeset detected

Latest commit: 1e9688d

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

This PR includes changesets to release 5 packages

Name	Type
@siemens/ix-angular	Minor
@siemens/ix	Minor
@siemens/ix-vue	Minor
@siemens/ix-aggrid	Patch
@siemens/ix-react	Minor

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[nuke-ellington]

Create interface for all button like components and have them implement it (compare IxDatePickerComponent)

[nuke-ellington]

I think if we remove the CSS transition from .btn-search the collapse animation feels less weird. We should consult a designer 😆

[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