[apps] Display the preferences in the title bar

Change-Id: Ib1defef85b68a48f667127c583901b659db1cbaf

apps/apps_container.cpp

@@ -18,6 +18,7 @@ AppsContainer::AppsContainer() :
   m_preferences(Preferences()),
   m_variableBoxController(&m_globalContext)
 {
+  refreshPreferences();
 }
 
 int AppsContainer::numberOfApps() {
@@ -71,6 +72,10 @@ void AppsContainer::switchTo(App * app) {
   Container::switchTo(app);
 }
 
+void AppsContainer::refreshPreferences() {
+  m_window.refreshPreferences(&m_preferences);
+}
+
 Window * AppsContainer::window() {
   return &m_window;
 }