Added track to config

ref #1

src/store.js

@@ -15,6 +15,11 @@ export const stationinfo = writable(stored_stationinfo);
 stationinfo.subscribe((value) => {
 	localStorage.setItem('stationinfo', value);
 });
+const stored_laptime_track = localStorage.getItem('laptime_track');
+export const laptime_track = writable(stored_laptime_track);
+laptime_track.subscribe((value) => {
+	localStorage.setItem('laptime_track', value);
+});
 const stored_page = localStorage.getItem('page');
 export const page = writable(stored_page);
 page.subscribe((value) => {