fix(core/dropdown): adjusted height for dropdown (siemens#1671)

[varun-srinivasa]

💡 What is the current behavior?

GitHub Issue Number: #1671

🆕 What is the new behavior?

• Change max-height of dropdown from 50vh to calc(50vh - 50px)
• Added visual regression test cases

🏁 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: 8592fca

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

This PR includes changesets to release 4 packages

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

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[danielleroux]

Thanks for your contribution, looks like your screenshots for testing are generated with windows. You have to generate it via a linux based system: https://github.com/siemens/ix/blob/main/CONTRIBUTING.md#visual-regression-testing

[danielleroux]

@varun-srinivasa did you consider to use a component test instead of an visual-regression test?

[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

[nuke-ellington]

Visual regression tests of other components that utilise the ix-dropdown fail with these changes. Please review them and decide if these changes need to be fixed or the snapshots need to be udpted.