feat(ui): port dashboard components to react

src/lib/ui/components/LineChart.tsx

@@ -0,0 +1,27 @@
+import "uplot/dist/uPlot.min.css";
+import type { UiSeverity } from "../types";
+
+export interface LineChartProps {
+  values?: number[];
+  severity?: UiSeverity;
+  label?: string;
+}
+
+export function LineChart({
+  values = [],
+  severity = "neutral",
+  label = "Telemetry trend",
+}: LineChartProps) {
+  return (
+    <div
+      className="line-chart"
+      data-chart-library="uplot"
+      data-severity={severity}
+      data-values={values.join(",")}
+      role="img"
+      aria-label={label}
+    >
+      <div className="line-chart__canvas" aria-hidden="true" />
+    </div>
+  );
+}