ui: node type keywords to filter autocompletions or activate all nodes (issue #78)

* Fix history stack activating wrong symbol when aggregation was clicked

src/lib/component/controller/CodeController.cpp

@@ -34,7 +34,7 @@ void CodeController::handleMessage(MessageActivateAll* message)
 	clear();
 
 	Project* currentProject = Application::getInstance()->getCurrentProject().get();
-	if (!currentProject)
+	if (!currentProject || message->filter)
 	{
 		return;
 	}