Add banned apps page

Related to #343

---

For more details, open the [Copilot Workspace session](https://copilot-workspace.githubnext.com/OWASP-BLT/BLT-Flutter/issues/343?shareId=XXXX-XXXX-XXXX-XXXX).

lib/src/app.dart

@@ -1,5 +1,3 @@
-//import 'dart:async';
-
 import 'package:blt/src/pages/onboarding_main_page.dart';
 import 'package:blt/src/providers/dark_mode_provider.dart';
 import 'package:blt/src/providers/language_provider.dart';
@@ -9,9 +7,8 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
-//import 'package:receive_sharing_intent/receive_sharing_intent.dart';
+import 'package:blt/src/pages/banned_apps_page.dart';
 
-/// ### The BLT app's root widget
 class BLT extends StatefulWidget {
   const BLT({Key? key}) : super(key: key);
 
@@ -55,6 +52,9 @@ class BLTState extends State<BLT> {
               themeMode:
                   themeMode.isDarkMode ? ThemeMode.dark : ThemeMode.light,
               home: Scaffold(body: OnboardingMainPage()),
+              routes: {
+                '/bannedApps': (context) => BannedAppsPage(),
+              },
             );
           },
         ),

lib/src/pages/banned_apps_page.dart

@@ -0,0 +1,81 @@
+import 'package:flutter/material.dart';
+import 'package:http/http.dart' as http;
+import 'dart:convert';
+
+class BannedAppsPage extends StatefulWidget {
+  @override
+  _BannedAppsPageState createState() => _BannedAppsPageState();
+}
+
+class _BannedAppsPageState extends State<BannedAppsPage> {
+  String? selectedCountry;
+  List<String> countries = [];
+  List<String> bannedApps = [];
+
+  @override
+  void initState() {
+    super.initState();
+    fetchCountries();
+  }
+
+  Future<void> fetchCountries() async {
+    final response = await http.get(Uri.parse('https://example.com/api/countries'));
+    if (response.statusCode == 200) {
+      setState(() {
+        countries = List<String>.from(json.decode(response.body));
+      });
+    } else {
+      throw Exception('Failed to load countries');
+    }
+  }
+
+  Future<void> fetchBannedApps(String country) async {
+    final response = await http.get(Uri.parse('https://example.com/api/banned_apps?country=$country'));
+    if (response.statusCode == 200) {
+      setState(() {
+        bannedApps = List<String>.from(json.decode(response.body));
+      });
+    } else {
+      throw Exception('Failed to load banned apps');
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text('Banned Apps'),
+      ),
+      body: Column(
+        children: [
+          DropdownButton<String>(
+            hint: Text('Select a country'),
+            value: selectedCountry,
+            onChanged: (String? newValue) {
+              setState(() {
+                selectedCountry = newValue;
+                fetchBannedApps(newValue!);
+              });
+            },
+            items: countries.map<DropdownMenuItem<String>>((String value) {
+              return DropdownMenuItem<String>(
+                value: value,
+                child: Text(value),
+              );
+            }).toList(),
+          ),
+          Expanded(
+            child: ListView.builder(
+              itemCount: bannedApps.length,
+              itemBuilder: (context, index) {
+                return ListTile(
+                  title: Text(bannedApps[index]),
+                );
+              },
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/src/pages/home/home.dart

@@ -334,6 +334,15 @@ class _HomeState extends ConsumerState<Home> {
                   );
                 },
               ),
+              ListTile(
+                title: Text("Banned Apps"),
+                onTap: () {
+                  Navigator.pushNamed(
+                    context,
+                    '/bannedApps',
+                  );
+                },
+              ),
               SwitchListTile(
                 title: Text("Dark Mode"),
                 value: isDarkMode.isDarkMode,