Implemented [Dify.AI](https://dify.ai) Block
- Dify Features:
-- Can Create Multiple Chat Bots
-- Assign Knowledge base/vector database to chat bots
-- Variables send by client to be used in the prompt
-- Options of custom and cloud AI LLMs to be changed with on click
- Dify API Function/Action Implemented
-- Create Chat Message (Takes in input variables, query, conversation
id, user id and returns answer, usage metadata and conversation id)
- Future Implantations with this block
-- Streaming response
-- File Upload for GPT Vision
-- Speech to text action
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## Summary by CodeRabbit
- **New Features**
- Introduced the ability to create chat messages within the Dify
platform.
- Added secure authentication for Dify.AI accounts.
- Implemented a new Dify.AI block with integrated chat message creation
and logo display.
- Enabled Dify.AI block in the repository for user access.
- **Enhancements**
- Enhanced security for API key input by changing it to a password
field.
- **Documentation**
- Included new types to support Dify AI service responses.
- **Refactor**
- Updated schema imports and array listings to include the new Dify.AI
block.
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Co-authored-by: Baptiste Arnaud <baptiste.arnaud95@gmail.com>
