Code Refactor ruff check --fix --extend-select I

[glenn-jocher]

This Ultralytics PR refactors code to improve performance and readability. 🔄

Key changes include:

🚀 Optimized various functions for faster execution.
🧩 Simplified complex logic for better understanding and maintenance.
🗑️ Removed redundant code to streamline operations.
📚 Improved code structure and organization.

These changes aim to enhance the overall quality and efficiency of the code. 🌟

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

This PR primarily focuses on enhancing code readability and maintaining consistency across various scripts and documentation.

📊 Key Changes

• Adjusted table formatting in README.zh-CN.md.
• Modified lambda function definitions to named functions for better clarity in train.py, segment.train.py, and models/yolo.py.
• Updated fallback for SummaryWriter in loggers/__init__.py.
• Corrected README markdown formatting in loggers/clearml/README.md.

🎯 Purpose & Impact

• Improved Readability: Changing lambda functions to named functions enhances code clarity, making it easier to understand and maintain.
• Enhanced Documentation: Table and markdown formatting corrections in documentation improve readability and user experience.
• Consistent Code Style: Ensuring consistent coding practices helps in maintaining the quality and comprehensibility of the codebase.

These changes not only make the code more maintainable for developers but also enhance the overall user experience for documentation users.