data: fixes and improvements

* save forward declarations of classes and structs as NODE_UNDEFINED_TYPE
* put whole files on top in snippet sorting
* uses aggregation count as weight in graph layouting instead of adding all edges to graph
* refreshing all views of components on MessageRefresh in ComponentManager
* reloading ApplikatinoSettings on MessageRefresh

src/lib/component/ComponentManager.cpp

@@ -49,3 +49,11 @@ void ComponentManager::setup(ViewLayout* viewLayout)
 ComponentManager::ComponentManager()
 {
 }
+
+void ComponentManager::handleMessage(MessageRefresh* message)
+{
+	for (std::shared_ptr<Component> component : m_components)
+	{
+		component->getView<View>()->refreshView();
+	}
+}