Add text nodes data to metadata in network area diagram SVG

[massimo-ferraro]

Please check if the PR fulfills these requirements

• [X] The commit message follows our guidelines
• [X] Tests for the changes have been modified (for bug fixes / features)
• [ ] Docs have been added / updated (for bug fixes / features)

Does this PR already have an issue describing the problem? no

What kind of change does this PR introduce? feature

What is the new behavior (if this is a feature change)? Data about text nodes have been added to the metadata in the network area diagram SVG

Does this PR introduce a breaking change or deprecate an API?

• [ ] Yes
• [X] No

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
95.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud