Get an event when a node is selected

### Description

I am using @flowfuse/node-red-dashboard-2-ui-flowviewer to support documentation of flows and I like it.
My requirement, change request or idea is - **is it possible to get an event out of flowviewer when a single node is clicked** in dashboard.
As I can see flowviewer is based on svg and every node is a ``````-Element.
The idea is to get a msg from flowviewer with the data-node-id when an element is clicked "click event".
So I can extract and show details from the .json-file for example when I click on a function-node - I want to show the js-sourcecode of this function.

### Requested By

- Customer name and/or link to HubSpot contact