fix: 3459 - Added a shortcut in app settings to In-app settings (#3726)

* Added a shortcut in app settings to In-app settings

* Provided ontap() functionality to listTile on _AdvancedSettings()

* Added version of the app_settings

* Rolled back fluter version in pubspec.lock

* Changed theme style of _AdvancedSettings()

---------

Co-authored-by: monsieurtanuki <fabrice_fontaine@hotmail.com>

packages/smooth_app/lib/l10n/app_en.arb

@@ -650,6 +650,14 @@
     "@product_removed_comparison": {
         "description": "Product got removed from comparison list"
     },
+    "native_app_settings": "Native App Settings",
+    "@native_app_settings": {
+        "description": "Native App Settings in app settings"
+    },
+    "native_app_description": "Open systems settings for Open Food Facts",
+    "@native_app_description": {
+        "description": "Native App description in app settings"
+    },
     "product_removed_history": "Product removed from history",
     "@product_removed_history": {
         "description": "Product got removed from history"

packages/smooth_app/lib/pages/preferences/user_preferences_settings.dart

@@ -1,3 +1,5 @@
+import 'package:app_settings/app_settings.dart';
+import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
@@ -334,6 +336,52 @@ class _PrivacySettings extends StatelessWidget {
         const UserPreferencesListItemDivider(),
         const _SendAnonymousDataSetting(),
         const UserPreferencesListItemDivider(),
+        const _AdvancedSettings(),
+        const UserPreferencesListItemDivider(),
+      ],
+    );
+  }
+}
+
+class _AdvancedSettings extends StatelessWidget {
+  const _AdvancedSettings({
+    Key? key,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    final AppLocalizations appLocalizations = AppLocalizations.of(context);
+
+    return Row(
+      mainAxisAlignment: MainAxisAlignment.spaceBetween,
+      children: <Widget>[
+        Expanded(
+          child: ListTile(
+            onTap: () async {
+              await AppSettings.openAppSettings();
+            },
+            title: Text(
+              appLocalizations.native_app_settings,
+              style: Theme.of(context).textTheme.headlineMedium,
+            ),
+            subtitle: Padding(
+              padding: const EdgeInsets.only(top: SMALL_SPACE),
+              child: Text(
+                appLocalizations.native_app_description,
+                style: Theme.of(context).textTheme.bodyText2,
+              ),
+            ),
+            trailing: const Padding(
+              padding: EdgeInsets.only(
+                right: LARGE_SPACE,
+              ),
+              child: Icon(
+                CupertinoIcons.settings_solid,
+              ),
+            ),
+            minVerticalPadding: MEDIUM_SPACE,
+          ),
+        ),
       ],
     );
   }

packages/smooth_app/pubspec.lock

@@ -15,6 +15,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "4.7.0"
+  app_settings:
+    dependency: "direct main"
+    description:
+      name: app_settings
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.2.0"
   app_store_apple_store:
     dependency: "direct main"
     description:
@@ -1521,4 +1528,4 @@ packages:
     version: "3.1.1"
 sdks:
   dart: ">=2.17.0 <3.0.0"
-  flutter: ">=3.0.0"
+  flutter: ">=3.0.1"

packages/smooth_app/pubspec.yaml

@@ -45,6 +45,7 @@ dependencies:
   url_launcher: 6.1.3
   visibility_detector: 0.3.3
   assorted_layout_widgets: 6.1.1
+  app_settings: 4.2.0
 
   # Camera (custom implementation for Android)
   camera: