fix sonar issues

[eballo]

Catalunya Medieval Maps

Overview

Briefly describe what this pull request accomplishes and what impact it aims to achieve. Include the main changes introduced and any relevant background information.

Checklist:

Go through these points to ensure the PR fulfills expectations.

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[sonarcloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
81.8% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud