Improve datastore about cached trip details

web/journeys-search.js

@@ -1,6 +1,7 @@
 import { fetchJourneys } from './api.js';
 import { attachLocationsSearch } from './locations-search.js';
 import { addJourneyToDraftingBoard } from './drafting-board.js';
+import { DataStore } from './datastore.js';
 
 let element_journeys_search = document.querySelector("#journeys-search");
 let element_from = document.querySelector("#journey-search-from");
@@ -26,6 +27,7 @@ function createJourneyElement(journey) {
 	let el = document.createElement("div");
 
 	for (let leg of journey.legs) {
+		DataStore.locations.rememberAllIfNotExist([leg.origin, leg.destination]);
 		el.appendChild(createJourneyLegElement(leg));
 	}