Add loginFailed signal to AccountManager

libraries/networking/src/AccountManager.cpp

@@ -334,6 +334,7 @@ void AccountManager::requestFinished() {
     } else {
         // TODO: error handling
         qDebug() <<  "Error in response for password grant -" << rootObject["error_description"].toString();
+        emit loginFailed();
     }
 }
 

libraries/networking/src/AccountManager.h

@@ -71,6 +71,7 @@ signals:
     void usernameChanged(const QString& username);
     void accessTokenChanged();
     void loginComplete(const QUrl& authURL);
+    void loginFailed();
     void logoutComplete();
 private slots:
     void processReply();