Fix signal redefinition warning

include/ChatPage.h

@@ -83,7 +83,7 @@ public:
 
 signals:
         void contentLoaded();
-        void close();
+        void closing();
         void changeWindowTitle(const QString &msg);
         void unreadMessages(int count);
         void showNotification(const QString &msg);

src/ChatPage.cc

@@ -453,7 +453,7 @@ ChatPage::logout()
 
         resetUI();
 
-        emit close();
+        emit closing();
 }
 
 void

src/MainWindow.cc

@@ -93,7 +93,7 @@ MainWindow::MainWindow(QWidget *parent)
         });
         connect(register_page_, SIGNAL(backButtonClicked()), this, SLOT(showWelcomePage()));
 
-        connect(chat_page_, SIGNAL(close()), this, SLOT(showWelcomePage()));
+        connect(chat_page_, &ChatPage::closing, this, &MainWindow::showWelcomePage);
         connect(
           chat_page_, &ChatPage::showOverlayProgressBar, this, &MainWindow::showOverlayProgressBar);
         connect(