Add Feature detect if user requests to talk to a human

[dasgoutam]

Implements #25

[svenseeberg]

It could be useful to move this to the def needs_answer() method? We can then parallelize those requests based on #184

[dasgoutam]

I re-structured the needs_answer() method to include both human_request check and is_question check

---

def needs_answer(self, message: str, language_service: LanguageService) -> bool:
    LOGGER.debug("Checking if the user requests to talk to a human counselor")
    if self.detect_request_human():
        LOGGER.debug("User requests human intervention.")
        return [
            False,
            RagResponse(
                [],
                self.rag_request,
                language_service.translate_message(
                    "en", self.language, Messages.TALK_TO_HUMAN
                ),
                False,
            ),
        ]

    LOGGER.debug("Checking if user message is a question or intent")
    answer = self.llm_api.simple_prompt(Prompts.CHECK_QUESTION.format(message))
    if answer.startswith("Yes"):
        LOGGER.debug("Message requires response.")
        return [True, None]
    LOGGER.debug("Message does not require response.")
    return [
        False,
        RagResponse(
            [],
            self.rag_request,
            language_service.translate_message(
                "en", self.language, Messages.NOT_QUESTION
            ),
            False,
        ),
    ]

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