Description: - Show a simple overview of the user's favorite countries. Tasks: - Create a FavoritesList component. - Show the names of the favorite countries. - Let the user select a favorite country from the list. - Show a message when the list is empty. - Pass data and callbacks through props. Acceptance: - All favorite countries are shown in the list. - Clicking a favorite displays the country in the main card. - An empty favorites list is handled clearly. - The main area still shows only one country at a time.