Read SVG parameters from metadata in network area diagram

[massimo-ferraro]

Please check if the PR fulfills these requirements

• [X] The commit message follows our guidelines
• [ ] Tests for the changes have been added (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 current behavior? The SVG parameters used for handling the nodes moving are hardcoded in a class

What is the new behavior (if this is a feature change)? The SVG parameters used for handling the nodes moving are read from the SVG metadata

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

• [ ] Yes
• [X] No