CopilotKit Intro: Standard React Chat and Spreadsheet App

CopilotKit: Open-Source Copilot Infrastructure. CopilotKit GitHub repo: https://github.com/CopilotKit/CopilotKit The template apps we showcased in the walkthrough: - Spreadsheets + Copilot: https://github.com/CopilotKit/demo-spreadsheet - CRM (CopilotTextarea): https://github.com/CopilotKit/demo-crm