Feature Request: Regular Copilot Quota Polling

Problem: The Copilot quota footer widget currently shows stale data because there's no mechanism to refresh it regularly.

Proposed Solution: Implement periodic polling (every X seconds/minutes) to fetch current Copilot quota usage and update the footer widget automatically.

Requirements:

• Poll Copilot quota API regularly
• Update footer widget with latest usage data
• Configurable polling interval
• Efficient resource usage (don't over-poll)

Benefit: Users will always see accurate quota information in the VS Code footer widget.

Priority: Medium
Labels: enhancement, copilot