feat: add icons for light and dark mode

[javier-godoy]

Summary by CodeRabbit

• New Features
  • Added light mode and dark mode icons to the demo icon set.
  • The new icons are available for use alongside the existing demo icons.

[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

[coderabbitai]

Walkthrough

The demo icon enum now exposes DARK_MODE and LIGHT_MODE, and the frontend iconset template defines matching sun and moon SVG glyphs.

Changes

Iconset expansion

Layer / File(s)	Summary
Icon declarations and SVG glyphs base/src/main/java/com/flowingcode/vaadin/addons/demo/CommonsDemoIcons.java, base/src/main/resources/META-INF/resources/frontend/commons-demo-iconset.ts	The public enum adds dark- and light-mode names, while the SVG template adds corresponding moon and sun glyph definitions.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly matches the main change: adding light and dark mode icons.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat-color-scheme-icons

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}