Fix compatibility issues with addThemeVariants method in demo

[paodb]

Summary by CodeRabbit

• Refactor
  • Internal updates to theme application mechanism.

[coderabbitai]

Walkthrough

The pull request refactors theme variant application in a test demo file, replacing direct addThemeVariants API calls with themeNames manipulation within Vaadin-specific conditional blocks, while preserving original code as comments.

Changes

Cohort / File(s)	Summary
Theme Variant Refactoring src/test/java/com/flowingcode/vaadin/addons/orgchart/EditChartDemo.java	Replaces addThemeVariants API usage with themeNames string manipulation for typeSelector and icon buttons within Vaadin 0 conditional blocks. Original theme variant calls preserved as comments.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title directly addresses the main change: replacing addThemeVariants API usage with themeNames manipulation to fix compatibility issues in the demo file.

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✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch issue-93

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[sonarqubecloud]

Quality Gate passed

Issues
2 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