Replace timeline with empty qml view

src/timeline2/TimelineViewManager.cpp

@@ -0,0 +1,10 @@
+#include "TimelineViewManager.h"
+
+TimelineViewManager::TimelineViewManager(QWidget *parent)
+{
+        view      = new QQuickView();
+        container = QWidget::createWindowContainer(view, parent);
+        container->setMinimumSize(200, 200);
+        view->setSource(QUrl("qrc:///qml/TimelineView.qml"));
+        // view->rootContext()->setContextProperty(room);
+}