📊 Add Copilot metrics dashboard tab in hub

[0GiS0]

📋 Description

Add a new tab within the Copilot hub to display GitHub Copilot usage metrics and analytics.

🎯 Goals

• Visualize Copilot usage statistics
• Track team adoption and productivity metrics
• Provide insights on code suggestions acceptance rate

📝 Features to implement

Metrics to display:

• Total suggestions accepted/rejected
• Code completion acceptance rate
• Most active users
• Usage trends over time
• Languages and file types most used with Copilot

UI Components:

• Dashboard with charts and graphs
• Date range selector
• Export functionality for reports

✅ Acceptance Criteria

• New tab visible in the Copilot hub
• Metrics fetched from GitHub Copilot API
• Charts render correctly with real data
• Responsive design for different screen sizes
• Loading states and error handling