Fix GraphQL labels

[UltralyticsAssistant]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Enhancements made to label application logic using GraphQL for discussions.

📊 Key Changes

• Replaced REST API with GraphQL for fetching label IDs.
• Added base64 encoding for node_id in discussions.
• Updated the method of managing labels for discussions.
• Refined logic for retrieving label descriptions separately.

🎯 Purpose & Impact

• Efficiency: Leveraging GraphQL for label management increases performance and flexibility. 🚀
• Accuracy: Improved method for handling labels ensures correct application in discussions.
• User Experience: Enhancements may lead to more consistent and reliable interactions for users engaging in discussions.

[UltralyticsAssistant]

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