Add sample data generation for the Feedback model within the existing load_sample_data.py script.
As mentioned in other challenges, we have a script callled load_sample_data.py. This script generates realistic data during the development so that the developers test the UI and other parts of the application. Recently, Feedback model is added to the project. However, there are not any sample data for this model. With this task, we want to generate sample data for Feedback model.