Init: better widget upgrading process + less warnings when starting up without config or cache

Services/LocationService.qml

@@ -25,6 +25,7 @@ Singleton {
   FileView {
     id: locationFileView
     path: locationFile
+    printErrors: false
     onAdapterUpdated: saveTimer.start()
     onLoaded: {
       Logger.log("Location", "Loaded cached data")

Services/NetworkService.qml

@@ -30,6 +30,7 @@ Singleton {
   FileView {
     id: cacheFileView
     path: root.cacheFile
+    printErrors: false
 
     JsonAdapter {
       id: cacheAdapter

Services/NotificationService.qml

@@ -65,6 +65,7 @@ Singleton {
     id: historyFileView
     objectName: "notificationHistoryFileView"
     path: historyFile
+    printErrors: false
     watchChanges: true
     onFileChanged: reload()
     onAdapterUpdated: writeAdapter()