🚚 Move utils function from types.tsx to utils.tsx

frontend/src/utils.tsx

@@ -1,4 +1,4 @@
-import { getTransportModeSrc } from './types';
+const validTransportModes = ["bus", "tram", "metro", "rer", "transilien", "funicular", "ter", "unknown"];
 
 export const TransportModeWeights = {
 	bus: 1,
@@ -15,6 +15,15 @@ export function renderLineTransportMode(line): JSX.Element {
 	return <img src={getTransportModeSrc(line.transportMode)} />
 }
 
+export function getTransportModeSrc(mode: string, color: bool = true): string {
+	let ret = null;
+	if (validTransportModes.includes(mode)) {
+		ret = `/public/symbole_${mode}_${color ? "" : "support_fonce_"}RVB.svg`;
+	}
+	return ret;
+}
+
+
 function renderBusLinePicto(line, styles): JSX.Element {
 	return (
 		<div class={styles.busLinePicto}>