add some padding to the sliders

frontend/lib/pages/new_trip_preferences.dart

@@ -34,23 +34,6 @@ class _NewTripPreferencesPageState extends State<NewTripPreferencesPage> with Sc
       child: Scaffold(
         body: ListView(
           children: [
-            // Center(
-            //   child: CircleAvatar(
-            //     radius: 100,
-            //     child: Icon(Icons.person, size: 100),
-            //   )
-            // ),
-            // Padding(padding: EdgeInsets.only(top: 30)),
-            // Center(
-            //   child: FutureBuilder(
-            //     future: widget.trip.cityName,
-            //     builder: (context, snapshot) => Text(
-            //       'Your trip to ${snapshot.hasData ? snapshot.data! : "..."}',
-            //       style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold)
-            //     )
-            //   )
-            // ),
-
           Center(
             child: Padding(
             padding: EdgeInsets.only(left: 10, right: 10, top: 20, bottom: 0),
@@ -63,6 +46,11 @@ class _NewTripPreferencesPageState extends State<NewTripPreferencesPage> with Sc
           durationPicker(preferences.maxTime),
 
           preferenceSliders([preferences.sightseeing, preferences.shopping, preferences.nature]),
+
+          // Add a conditional padding to avoid the floating button covering the last slider
+          Padding(
+            padding: EdgeInsets.only(bottom: MediaQuery.of(context).viewInsets.bottom + 80),
+            ),
         ]
       ),
       floatingActionButton: NewTripButton(trip: widget.trip, preferences: preferences),