Merge branch '31-force-fixed-orientation' into 'master'

Resolve "Force fixed orientation"

Closes #31

See merge request !26

android/gradle.properties

 org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 android.enableJetifier=true
-app.versionName=0.0.23
-app.versionCode=23
+app.versionName=0.0.24
+app.versionCode=24

fastlane/metadata/android/en-US/changelogs/24.txt

+Force portrait orientation

fastlane/metadata/android/fr-FR/changelogs/24.txt

+Force l'orientation en mode portrait

lib/main.dart

 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:provider/provider.dart';
 
 import 'provider/data.dart';
 import 'screens/home.dart';
 
-void main() => runApp(MyApp());
+void main() {
+  WidgetsFlutterBinding.ensureInitialized();
+  SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp])
+      .then((value) => runApp(MyApp()));
+}
 
 class MyApp extends StatelessWidget {
   @override