[BUG] Gremlin visualizer renders elementMaps incorrectly when custom `id` property is present

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**Describe the bug**

This issue occurs running a `%%gremlin` query that returns path components in `elementMap` format. If the vertices in the path contain a custom `id` property, the visualizer confuses this with the default `T.id` token property, and renders the graph incorrectly.

When using WebSockets protocol, this issue manifests as duplicate, unconnected nodes in the graph.