ctucx.git: trainsearch

fix upgrade function

diff --git a/src/dataStorage.js b/src/dataStorage.js
@@ -85,11 +85,11 @@ class IDBStorage {
 					db.createObjectStore('journeysOverview', {keyPath: 'slug'});
 					db.createObjectStore('journeysHistory', {autoIncrement: true});
 				case 2:
-					const settings = transaction.objectStore('settings').get('settings');
+					const settings = await transaction.objectStore('settings').get('settings');
 					if (settings.profile === 'vbb') {
 						settings.profile = 'db';
 					}
-					transaction.objectStore('settings').put(settings, 'settings');
+					await transaction.objectStore('settings').put(settings, 'settings');
 				case 3:
 					//... add migrations for 3->4 here
 				}