fix: Refactor DICOM Tag Browser path check in Header

[igoroctaviano]

• Replace repeated pathname.includes() calls with a single .some() over a shared path list
• Add module-level DICOM_TAG_BROWSER_PATHS constant for easier maintenance
• Avoid recreating the path array on each render

[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

[deepsource-io]

Here's the code health analysis summary for commits bcf57c9..b544192. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
JavaScript	✅ Success		View Check ↗

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