FlaskApp: Give an option to let users decide whether to run the generated SQL

[Priyansh121096]

Is there a way to disable automatically running the generated SQL against the database and instead prompting the user to confirm before running the SQL? I can't find it in the args to vanna.flask.VannaFlaskApp.__init__.

Args:
            vn: The Vanna instance to interact with.
            cache: The cache to use. Defaults to MemoryCache, which uses an in-memory cache. You can also pass in a custom cache that implements the Cache interface.
            auth: The authentication method to use. Defaults to NoAuth, which doesn't require authentication. You can also pass in a custom authentication method that implements the AuthInterface interface.
            debug: Show the debug console. Defaults to True.
            allow_llm_to_see_data: Whether to allow the LLM to see data. Defaults to False.
            logo: The logo to display in the UI. Defaults to the Vanna logo.
            title: The title to display in the UI. Defaults to "Welcome to Vanna.AI".
            subtitle: The subtitle to display in the UI. Defaults to "Your AI-powered copilot for SQL queries.".
            show_training_data: Whether to show the training data in the UI. Defaults to True.
            suggested_questions: Whether to show suggested questions in the UI. Defaults to True.
            sql: Whether to show the SQL input in the UI. Defaults to True.
            table: Whether to show the table output in the UI. Defaults to True.
            csv_download: Whether to allow downloading the table output as a CSV file. Defaults to True.
            chart: Whether to show the chart output in the UI. Defaults to True.
            redraw_chart: Whether to allow redrawing the chart. Defaults to True.
            auto_fix_sql: Whether to allow auto-fixing SQL errors. Defaults to True.
            ask_results_correct: Whether to ask the user if the results are correct. Defaults to True.
            followup_questions: Whether to show followup questions. Defaults to True.
            summarization: Whether to show summarization. Defaults to True.
            index_html_path: Path to the index.html. Defaults to None, which will use the default index.html
            assets_folder: The location where you'd like to serve the static assets from. Defaults to None, which will use hardcoded Python variables.