[Feature] Export for Visualize Schema

[penenkel]

It would be nice if the visualization could be exported as a file. Ideally both as an image and as some kind of diagram code.

[Matt McFarland (mmcfarland)]

Thanks penenkel -- the schema visualizer is getting some major updates in advance of enabling table/schema editing in the same surface. I'll be sure to include image export. Diagram code export hadn't occured to me, but it's a great idea.

I'll ping here when the preview version of the new visualizer is available to help gather feedback.