use more fitting floating action button, cleanup

frontend/lib/modules/current_trip_landmarks_list.dart

@@ -0,0 +1,64 @@
+import 'dart:developer';
+import 'package:anyway/modules/step_between_landmarks.dart';
+import 'package:flutter/material.dart';
+
+import 'package:anyway/modules/landmark_card.dart';
+import 'package:anyway/structs/landmark.dart';
+import 'package:anyway/structs/trip.dart';
+import 'package:anyway/main.dart';
+
+
+
+List<Widget> landmarksList(Trip trip) {
+  log("Trip ${trip.uuid} ${trip.landmarks.length} landmarks");
+  
+  List<Widget> children = [];
+
+  log("Trip ${trip.uuid} ${trip.landmarks.length} landmarks");
+
+  if (trip.landmarks.isEmpty || trip.landmarks.length <= 1 && trip.landmarks.first.type == start ) {
+    children.add(
+      const Text("No landmarks in this trip"),
+    );
+    return children;
+  }
+
+  for (Landmark landmark in trip.landmarks) {
+    children.add(
+      Dismissible(
+        key: ValueKey<int>(landmark.hashCode),
+        child: LandmarkCard(landmark),
+        dismissThresholds: {DismissDirection.endToStart: 0.95, DismissDirection.startToEnd: 0.95},
+        onDismissed: (direction) {
+          log('Removing ${landmark.name}');
+          trip.removeLandmark(landmark);
+          // Then show a snackbar
+
+          rootScaffoldMessengerKey.currentState!.showSnackBar(
+            SnackBar(content: Text("We won't show ${landmark.name} again"))
+          );
+        },
+
+        background: Container(color: Colors.red),
+        secondaryBackground: Container(
+          color: Colors.red,
+          child: Icon(
+            Icons.delete,
+            color: Colors.white,
+          ),
+          padding: EdgeInsets.all(15),
+          alignment: Alignment.centerRight,
+        ),
+      )
+    );
+
+    if (landmark.next != null) {
+      children.add(
+        StepBetweenLandmarks(current: landmark, next: landmark.next!)
+      );
+    }
+  }
+
+  return children;
+}
+