refactor with updated urls

lib/about_page.dart

@@ -21,17 +21,17 @@ import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:logging/logging.dart';
-import 'package:url_launcher/url_launcher.dart';
 
+import 'android/state.dart';
+import 'app/app_url_launcher.dart';
 import 'app/logging.dart';
 import 'app/message.dart';
 import 'app/state.dart';
 import 'core/state.dart';
-import 'android/state.dart';
 import 'desktop/state.dart';
 import 'version.dart';
-import 'widgets/responsive_dialog.dart';
 import 'widgets/choice_filter_chip.dart';
+import 'widgets/responsive_dialog.dart';
 
 final _log = Logger('about');
 
@@ -70,11 +70,7 @@ class AboutPage extends ConsumerWidget {
                         const TextStyle(decoration: TextDecoration.underline),
                   ),
                   onPressed: () {
-                    launchUrl(
-                      Uri.parse(
-                          'https://www.yubico.com/support/terms-conditions/yubico-license-agreement/'),
-                      mode: LaunchMode.externalApplication,
-                    );
+                    launchTermsUrl();
                   },
                 ),
                 TextButton(
@@ -84,11 +80,7 @@ class AboutPage extends ConsumerWidget {
                         const TextStyle(decoration: TextDecoration.underline),
                   ),
                   onPressed: () {
-                    launchUrl(
-                      Uri.parse(
-                          'https://www.yubico.com/support/terms-conditions/privacy-notice/'),
-                      mode: LaunchMode.externalApplication,
-                    );
+                    launchPrivacyUrl();
                   },
                 ),
               ],
@@ -128,14 +120,7 @@ class AboutPage extends ConsumerWidget {
                         const TextStyle(decoration: TextDecoration.underline),
                   ),
                   onPressed: () {
-                    launchUrl(
-                      Platform.isAndroid
-                          // Android Beta feedback form
-                          ? Uri.parse('https://forms.gle/2J81Kh8rnzBrtNc69')
-                          // Desktop Beta feedback form
-                          : Uri.parse('https://forms.gle/nYPVWcFnqoprZX1S9'),
-                      mode: LaunchMode.externalApplication,
-                    );
+                    launchFeedbackUrl();
                   },
                 ),
                 TextButton(
@@ -145,10 +130,7 @@ class AboutPage extends ConsumerWidget {
                         const TextStyle(decoration: TextDecoration.underline),
                   ),
                   onPressed: () {
-                    launchUrl(
-                      Uri.parse('https://support.yubico.com/support/home'),
-                      mode: LaunchMode.externalApplication,
-                    );
+                    launchHelpUrl();
                   },
                 ),
               ],

lib/app/app_url.dart

@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2022 Yubico.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import 'dart:io';
+
+class AppUrl {
+  static final String feedbackUrl = Platform.isAndroid
+      ? 'https://yubi.co/ya-feedback-android'
+      : 'https://yubi.co/ya-feedback-desktop';
+
+  static final String helpUrl = Platform.isAndroid
+      ? 'https://yubi.co/ya-help-android'
+      : 'https://yubi.co/ya-help-desktop';
+
+  static String termsUrl = 'https://yubi.co/terms';
+
+  static String privacyUrl = 'https://yubi.co/privacy';
+}

lib/app/app_url_launcher.dart

@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2022 Yubico.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import 'package:url_launcher/url_launcher.dart';
+
+import 'app_url.dart';
+
+Future<bool> _launchUrl(String url) => launchUrl(
+      Uri.parse(url),
+      mode: LaunchMode.externalApplication,
+    );
+
+Future<bool> launchFeedbackUrl() async {
+  return _launchUrl(AppUrl.feedbackUrl);
+}
+
+Future<bool> launchHelpUrl() async {
+  return _launchUrl(AppUrl.helpUrl);
+}
+
+Future<bool> launchTermsUrl() async {
+  return _launchUrl(AppUrl.termsUrl);
+}
+
+Future<bool> launchPrivacyUrl() async {
+  return _launchUrl(AppUrl.privacyUrl);
+}