feat: re add dropdown options for llm generation btn

[AlitaBernachot]

• re activate dropdown menu porposal => working functionality

  • first panel: 3 modes, checboxes to override fields or not
  • second panel: prompt text for user

• rework ui/ux maybe?

• new drop up menu on the toggle Generate with ai button: ui layout done for demo but still needs
  • if dropdown is validated, some refactor on the html component (maybe create a new component including the toggle and the dropdown?)
  • the text is not yet sent to the llm => we need a way to pass this info through the dags (maybe use the new column extra config)