Let a dashboard be read against runs instead of the live engine

frontend/src/components/Dashboard/BarWidget.tsx

@@ -1,5 +1,5 @@
 import { slotsFor } from "@/components/Common/UplotChart"
-import { useLiveValues } from "@/components/Flow/liveStore"
+import { useBoundValues } from "./dataContext"
 import { usePalette } from "./settings"
 import { useUi } from "./ui"
 import { rowsOf } from "./ui/core/config"
@@ -24,7 +24,7 @@ import type { WidgetProps } from "./widgets"
 export function BarWidget({ widget }: WidgetProps) {
   const { Bar } = useUi()
   const rows = rowsOf(widget).filter((row) => row.message)
-  const live = useLiveValues(rows.map((row) => row.message as string))
+  const live = useBoundValues(rows.map((row) => row.message as string))
   // The dashboard's own data colours, in the order a chart would take them, so
   // a bar and a chart of the same readings agree about which line is which.
   const colors = slotsFor(rows.length, usePalette())