FahrplanPanel: Now filtering stops that are 5h in the future

This prevents key collisions

src/panels/Fahrplan/FahrplanPanel.tsx

@@ -52,6 +52,11 @@ const FahrplanPanel = (props: {definition: FahrplanPanelDefinition}) => {
         const delay = stringToDelay(departure.delay);
         const arrival = processArrival(departure.sched_date, departure.time);
 
+        // Throw away stops that are five hours in the future as keys start colliding at some point
+        if(arrival.getTime() >= 5 * 60 * 60 * 1000 + (new Date()).getTime()) {
+          continue;
+        }
+
         if(existing_ind === -1) {
           // If it does not exist, create a new route
           newRoutes.push({
@@ -69,7 +74,7 @@ const FahrplanPanel = (props: {definition: FahrplanPanelDefinition}) => {
             countdown: parseInt(departure.countdown)
           })
         } else {
-          // If it doesn't, just add a stop to the existing route
+          // If it does, just add a stop to the existing route
           newRoutes[existing_ind].stops.push({
             name: departure.internal.stop,
             arrival,