Add React race hub frontend

frontend/src/components/DriverCell.tsx

@@ -0,0 +1,17 @@
+import { teamColor } from '../utils'
+
+interface Props {
+  acronym: string
+  number: number
+  colour: string
+}
+
+export function DriverCell({ acronym, number, colour }: Props) {
+  return (
+    <div className="drv-cell">
+      <div className="drv-bar" style={{ background: teamColor(colour) }} />
+      <span className="drv-code">{acronym}</span>
+      <span className="drv-num">{number}</span>
+    </div>
+  )
+}