added Logout button

frontend_splatournament_manager/lib/pages/settings_page.dart

@@ -1,5 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:frontend_splatournament_manager/widgets/theme_selector_widget.dart';
+import 'package:provider/provider.dart';
+import 'package:frontend_splatournament_manager/providers/auth_provider.dart';
+import 'package:go_router/go_router.dart';
 
 import '../widgets/profile_widget.dart';
 
@@ -21,7 +24,20 @@ class _SettingsPageState extends State<SettingsPage> {
           ProfileWidget(),
           Column(
             mainAxisSize: MainAxisSize.min,
-            children: [ThemeSelectorWidget()],
+            children: [
+              ThemeSelectorWidget(),
+              ListTile(
+                leading: const Icon(Icons.logout, color: Colors.red),
+                title: const Text(
+                  'Sign Out',
+                  style: TextStyle(color: Colors.red),
+                ),
+                onTap: () {
+                  Provider.of<AuthProvider>(context, listen: false).logout();
+                  context.go('/login');
+                },
+              ),
+            ],
           ),
         ],
       ),