Workaround QtDeclarative crash QTBUG-23445

Just hardcode the initial WelcomeTab to 1

Task-Number: QTCREATORBUG-6803

Change-Id: I735d18dd3abb55468b1afdae9785f74a4b522345
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@nokia.com>

src/plugins/welcome/welcomeplugin.cpp

@@ -215,6 +215,9 @@ void WelcomeMode::initPlugins()
     QSettings *settings = Core::ICore::instance()->settings();
     setActivePlugin(settings->value(QLatin1String(currentPageSettingsKeyC)).toInt());
 
+    // TODO: re-enable reading from Settings when possible. See QTCREATORBUG-6803
+    setActivePlugin(1);
+
     QDeclarativeContext *ctx = m_welcomePage->rootContext();
     ctx->setContextProperty(QLatin1String("welcomeMode"), this);