actionNodesData is being directly changed in the diagram editor

[OscarMrZ]

As per the react documentation, objects put into state:

  const [actionNodesData, setActionNodesData] = useState({});

Should be considered as read-only, however, in the diagram editor , this is the case repeteadly, for example:

actionNodesData[name] = {
        input: [],
        output: [],
        ids: [node.getID()],
        color: node.getColor(),
      };

The logic should be changed so a new object is created, filled and then the state properly updated. This would remove the need of #168, which is just a hotfix imo.