Implemented auto-scrolling in the chat message list to ensure that the view scrolls down to the most recent message when a new chat is added. This behavior only triggers if the user is already at the bottom of the list, providing a seamless user experience.
- Added a new boolean state `isContinuousMode` to the `ChatInputField` widget to handle the continuous mode feature.
- Introduced a new callback function `onContinuousModePressed` to manage the state of the continuous mode from an external source.
- Conditionally rendered the send button based on the `isContinuousMode` state.
- Enhanced the UI by adding a button to toggle between continuous mode and single message mode, which triggers the `onContinuousModePressed` callback.
