Dashboard UI graph wrap-up items

[MichaelBurgess]

List of items to improve on the graph integration based on feedback:

• [ ] Panel progress bar too subtle
• [ ] Initial sizing / zoom level - hard to see initially
• [ ] Folded node count e.g. badge
• [ ] SVG text formatting / sizing / position
• [ ] Tooltip hovers - clear quicker, don't come up as quickly
• [ ] Node or edge error should not break the whole graph
• [ ] Placeholder nodes should show in a loading state
• [x] Cursor for collapsed edge should use default icon