[deploy preview] Experimental UI for flows #5190
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Deploy preview
Fixes #5178, to a degree.
This adds a flow panel at the bottom of the marker chart.
The panel shows a row per flow once a marker with flow fields is clicked. Clicking a row in the panel makes that flow the active flow and shows its associated flows in the panel. Hovering markers in the flow panel shows a tooltip and arrows.
This PR also adds the following functions that can be called from the console:
printFlows()
printFlow(1234)
(called with flow indexes, for example those from the "incoming context flows" printed byprintFlows()
)selectMarkerOnThread(1234, 56)
(called with the marker index and the thread index)Those aren't that useful anymore; we used them before this PR had any UI.