Closes#853
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## Summary by CodeRabbit
- **New Features**
- Introduced the ElevenLabs block for Typebot, enabling text to speech
conversion using ElevenLabs API.
- Added live tutorial videos for creating ElevenLabs and Telegram
blocks.
- Added a `docsUrl` for the OpenAI block to improve accessibility to
documentation.
- **Documentation**
- New guides and integration details for ElevenLabs and Telegram blocks.
- **Style**
- Added ElevenLabs logos for light and dark themes.
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