Update Forez tour

lib/forez/tour/forez_tour_builder.dart

@@ -58,6 +58,14 @@ List<Widget> buildTour(TourRouteState state) {
           showPresenceSettingsRoute(context, await ForezGroupHelper.getId()),
     ),
 
+    // Chat pane
+    PresentationPane(
+      icon: Icons.question_answer,
+      title: tr("Conversations"),
+      text: tr(
+          "#Forez now integrates the conversation system of Comunic, so you have access both to public and private conversations!"),
+    ),
+
     LastTourPane(),
   ];
 }