Start Refactoring mainpage using Settingsprovider

lib/pages/main_page.dart

@@ -18,7 +18,7 @@ class MyHomePage extends StatefulWidget {
 
 class MyHomePageState extends State<MyHomePage> {
   int _selectedIndex = 4;
-  int? _gruppe;
+  bool _isConfigured = false;
 
   final List<String> _titles = [
     'Stimmung',
@@ -35,11 +35,9 @@ class MyHomePageState extends State<MyHomePage> {
     ScannerPage(),
   ];
 
-  Future<void> _onItemTapped(int index) async {
-    _gruppe = await getGroup();
-    bool isConfigured = _gruppe != null;
+  void _onItemTapped(int index) {
     setState(() {
-      isConfigured
+      _isConfigured
           ? _selectedIndex = index
           : showDialog(
               context: context,
@@ -54,10 +52,13 @@ class MyHomePageState extends State<MyHomePage> {
 
   @override
   Widget build(BuildContext context) {
+    var settingsModel = context.watch<SettingsProvider>();
+    var group = settingsModel.settings?.group;
+    _isConfigured = settingsModel.initialized;
     return Scaffold(
       appBar: AppBar(
           title: Text(
-              '${_titles[_selectedIndex]} ${_gruppe != null ? "Gruppe $_gruppe" : ""}')),
+              '${_titles[_selectedIndex]} ${_isConfigured ? "Gruppe $group" : ""}')),
       body: _widgetOptions.elementAt(_selectedIndex),
       bottomNavigationBar: NavigationBar(
         onDestinationSelected: _onItemTapped,

lib/widgets/relapse_form.dart

@@ -13,13 +13,13 @@ class RelapseForm extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     var inputModel = context.watch<InputProvider>();
-    var settings = context.watch<SettingsProvider>();
+    var settingsModel = context.watch<SettingsProvider>();
     return Column(
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
         ElevatedCard(
           title: 'Rückfallkategorie',
-          child: DropDown(settings.settings?.relapseCategories ?? []),
+          child: DropDown(settingsModel.settings?.relapseCategories ?? []),
         ),
         const ElevatedCard(
           title: 'Beschreibe deinen Rückfall',