editable task_type along with task_identifier on any node
A user has to be able to first draw a graph and later connect each node with tasks that he will create with their inputs and outputs. The task identifier is editable but the task_type needs to also be selected from a dropdown with all accepted taskTypes. Make editing look nice. The app should be able to connect to an existing task when the identifier is given and not wait for a reload of the graph to relate nodes to tasks and use their inputs-outputs.