Trace view fixes and improvements

[matt-aitken]

CleanShot.2024-04-19.at.18.15.20.mp4

Fixes

• Now the selected span doesn't add entries to the browser history
• Now changing the selected span doesn't impact the tree view or scrolling
• Clicking a node doesn't deselect it (even if it's already selected)

Improvements

• The loader for the trace only gets used when the trace has changed (not when selecting a span)
• Added a shortcuts bar at the bottom
• Added expand and collapse all
• Added number key shortcuts for expanding/collapsing at level
• Added Option/Alt clicking of the chevron to expand/collapse at that level
• Added Option/Alt + Left/Right to expand/collapse at that level

[changeset-bot]

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Latest commit: 961fe70

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