Dynamic Conversation - ElevenLabs

[minor trout]

It's inconsistent with the sample code in the npm docs

const conversation = useConversation({
  overrides: {
    agent: {
      prompt: {
        prompt: "My custom prompt",
      },
      firstMessage: "My custom first message",
      language: "en",
    },
    tts: {
      voiceId: "custom voice id"
    },
  },
});