rename settingpage

lib/pages/main_page.dart

@@ -24,12 +24,12 @@ class MyHomePageState extends State<MyHomePage> {
     'Rückfall',
     'Scanner'
   ];
-  static final List<Widget> _widgetOptions = <Widget>[
-    const MoodPage(),
-    const SleepPage(),
-    const StopWatchTimerPage(),
-    const RelapsePage(),
-    SettingsPage(),
+  static const List<Widget> _widgetOptions = <Widget>[
+    MoodPage(),
+    SleepPage(),
+    StopWatchTimerPage(),
+    RelapsePage(),
+    ScannerPage(),
   ];
 
   Future<void> _onItemTapped(int index) async {

lib/pages/scanner_page.dart

@@ -1,8 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:smoke_cess_app/service/settings_service.dart';
 
-class SettingsPage extends StatelessWidget {
-  SettingsPage({super.key});
+class ScannerPage extends StatelessWidget {
+  const ScannerPage({super.key});
 
   @override
   Widget build(BuildContext context) {