[REQUEST] Chat to create workflows #57

Describe the solution you'd like

When performing operations on a workflow, I would like to be able to chat with an AI to help me. The AI should:

• Answer general questions
• Perform workflow operations (add block/edge, delete blocks, etc.)
• Come back to the user with questions if feedback is required

Additional context

Example use case:

• Get my latest commits from GitHub and write feedback on my code, then send a message to Slack with how to improve my commits in the future

The AI would break down the query into multiple steps given the action items (add block, add connection, etc.). Then,

1. Add GitHub block
2. Define GitHub subblock values (get commits)
3. Add Agent block
4. Define Agent subblock values (system prompt, context, API key, etc.)
5. Add Slack block
6. Define Slack subblock values (channel, etc.)