Make workflow static data accessible

Utilising workflow static data can greatly improve some workflows. It would be great if:

  1. static data could be viewed, edited, inspected at a workflow, or node, level
  2. static data could be accessed within expressions

Submitted a PR so we can set staticData from the “Set” node - Set workflow staticData with Set node by pemontto · Pull Request #2416 · n8n-io/n8n · GitHub