Adapt welcome route

lib/main_forez_dev.dart

@@ -2,6 +2,7 @@ import 'dart:io';
 
 import 'package:comunic/main.dart';
 import 'package:comunic/models/config.dart';
+import 'package:comunic/utils/intl_utils.dart';
 import 'package:flutter/material.dart';
 
 /// Forez development configuration
@@ -27,6 +28,7 @@ void main() {
     clientName: "ForezFlutter",
     splashBackgroundColor: Colors.green.shade900,
     appName: "#Forez",
+    appQuickDescription: tr("Events organisation in Forez plain"),
   ));
 
   HttpOverrides.global = new MyHttpOverride();

lib/models/config.dart

@@ -16,6 +16,7 @@ class Config {
   final String clientName;
   final Color splashBackgroundColor;
   final String appName;
+  final String appQuickDescription;
 
   const Config({
     @required this.apiServerName,
@@ -24,6 +25,7 @@ class Config {
     @required this.clientName,
     this.splashBackgroundColor = defaultColor,
     this.appName = "Comunic",
+    this.appQuickDescription,
   })  : assert(apiServerName != null),
         assert(apiServerUri != null),
         assert(apiServerSecure != null),

lib/ui/widgets/login_scaffold.dart

@@ -52,12 +52,13 @@ class LoginScaffold extends StatelessWidget {
                 child: Column(
                   children: <Widget>[
                     Spacer(flex: 3),
-                    Text("Comunic",
+                    Text(config().appName,
                         textAlign: TextAlign.center,
                         style: TextStyle(fontSize: 50)),
                     Spacer(flex: 1),
                     Text(
-                      tr("Free social network that respect your privacy"),
+                      config().appQuickDescription ??
+                          tr("Free social network that respect your privacy"),
                       textAlign: TextAlign.center,
                     ),
                     Spacer(flex: 3),