`%%opencypher` should render detailed nodes if returned edges contain sufficient information

**Is your feature request related to a problem? Please describe.**

When `%%opencypher` retrieves a result set containing only relationships, the IN/OUT vertices for these relationships are always rendered as blank nodes, unlabeled and with the default group color.

Example `%%oc` visualization:

For comparison, the `%%gremlin` visualizer already behaves in the intended manner described when given only edges containing sufficient node information (i.e. via elementMap):


**Describe the solution you'd like**

When relationships returned via `%%opencypher` contain sufficient information (ex. `~id`) about the connected nodes, this information should be used to customize the appearance of the visualized nodes, instead of rendering them blank.