Enhance preset functions in app.py and related modules to include 'sport' parameter for improved flexibility in lineup management. This update modifies the small_field_preset, large_field_preset, volatility_preset, hedging_preset, and reduce_volatility_preset functions to accommodate sport-specific logic, enhancing user experience and accuracy in lineup strategies.

Rename function 'volatility_preset' to 'reduce_volatility_preset' for consistency with updated functionality. This change clarifies the purpose of the function in managing portfolio volatility.

Add 'Reduce Volatility' preset option in app.py and implement reduce_volatility_preset function. This update enhances user options for lineup management by allowing users to manage volatility in their selections, improving overall portfolio strategy.