reworked page layout inheritence

frontend/lib/utils/fetch_trip.dart

@@ -1,33 +1,33 @@
 import "dart:convert";
 import "dart:developer";
-import "package:anyway/utils/load_landmark_image.dart";
 import 'package:dio/dio.dart';
 
 import 'package:anyway/constants.dart';
+import "package:anyway/utils/load_landmark_image.dart";
 import "package:anyway/structs/landmark.dart";
 import "package:anyway/structs/trip.dart";
 import "package:anyway/structs/preferences.dart";
 
 
 Dio dio = Dio(
-    BaseOptions(
-      baseUrl: API_URL_BASE,
-      connectTimeout: const Duration(seconds: 5),
-      receiveTimeout: const Duration(seconds: 120),
-      // also accept 500 errors, since we cannot rule out that the server is at fault. We still want to gracefully handle these errors
-      validateStatus: (status) => status! <= 500,
-      receiveDataWhenStatusError: true,
-      // api is notoriously slow
-      // headers: {
-      //   HttpHeaders.userAgentHeader: 'dio',
-      //   'api': '1.0.0',
-      // },
-      contentType: Headers.jsonContentType,
-      responseType: ResponseType.json,
-        
+  BaseOptions(
+    baseUrl: API_URL_BASE,
+    connectTimeout: const Duration(seconds: 5),
+    receiveTimeout: const Duration(seconds: 120),
+    // also accept 500 errors, since we cannot rule out that the server is at fault. We still want to gracefully handle these errors
+    validateStatus: (status) => status! <= 500,
+    receiveDataWhenStatusError: true,
+    // api is notoriously slow
+    // headers: {
+    //   HttpHeaders.userAgentHeader: 'dio',
+    //   'api': '1.0.0',
+    // },
+    contentType: Headers.jsonContentType,
+    responseType: ResponseType.json,    
   ),
 );
 
+
 fetchTrip(
   Trip trip,
   UserPreferences preferences,

frontend/lib/utils/get_first_page.dart

@@ -1,11 +1,14 @@
-import 'package:anyway/pages/current_trip.dart';
-import 'package:anyway/pages/onboarding.dart';
-import 'package:anyway/structs/trip.dart';
-import 'package:anyway/utils/load_trips.dart';
+import 'package:anyway/main.dart';
 import 'package:flutter/material.dart';
 
+import 'package:anyway/structs/trip.dart';
+import 'package:anyway/utils/load_trips.dart';
+import 'package:anyway/pages/current_trip.dart';
+import 'package:anyway/pages/onboarding.dart';
+
+
 Widget getFirstPage() {
-  SavedTrips trips = SavedTrips();
+  SavedTrips trips = savedTrips;
   trips.loadTrips();
 
   return ListenableBuilder(
@@ -15,7 +18,7 @@ Widget getFirstPage() {
       if (items.isNotEmpty) {
         return TripPage(trip: items[0]);
       } else {
-        return OnboardingPage();
+        return const OnboardingPage();
       }
     }
   );