- Added Ollama client integration to handle chat completions.
- Modified the `chatbot` function to use the Ollama client for chat interactions.
- Removed the `dalle` function as it is not supported by Ollama.
- Updated the `reset_chat` function to handle resetting the chat history with Ollama.
- Added new settings for Ollama base URL and model in `settings.py`.
- Updated documentation in `README.md` to reflect the changes.
