navigation intent gets opened correctly

frontend/lib/modules/step_between_landmarks.dart

@@ -1,5 +1,6 @@
 import 'package:anyway/structs/landmark.dart';
 import 'package:flutter/material.dart';
+import 'package:anyway/modules/map_chooser.dart';
 
 class StepBetweenLandmarks extends StatefulWidget {
   final Landmark current;
@@ -18,7 +19,7 @@ class StepBetweenLandmarks extends StatefulWidget {
 class _StepBetweenLandmarksState extends State<StepBetweenLandmarks> {
   @override
   Widget build(BuildContext context) {
-    int timeRounded = 5 * (widget.current.tripTime?.inMinutes ?? 0) ~/ 5;
+    int timeRounded = 5 * ((widget.current.tripTime?.inMinutes ?? 0) ~/ 5);
     // ~/ is integer division (rounding)
     return Container(
       margin: EdgeInsets.all(10),
@@ -27,11 +28,6 @@ class _StepBetweenLandmarksState extends State<StepBetweenLandmarks> {
         border: Border(
           left: BorderSide(width: 3.0, color: Colors.black),
         ),
-        // gradient: LinearGradient(
-        //   begin: Alignment.topLeft,
-        //   end: Alignment.bottomRight,
-        //   colors: [Colors.grey, Colors.white, Colors.white],
-        // ),
       ),
       child: Row( 
         children: [
@@ -43,8 +39,8 @@ class _StepBetweenLandmarksState extends State<StepBetweenLandmarks> {
           ),
           Spacer(),
           ElevatedButton(
-            onPressed: () {
-              // Open navigation instructions
+            onPressed: () async {
+              showMapChooser(context, widget.current, widget.next);
             },
             child: Row(
               children: [