V1.2.4

• Merge pull request #21 from OpenSportsLab/dev-silvio
• feat: Update application version to v1.2.4
• feat: Display OpenSportsLib version in info popup, handle missing package gracefully
• Refactor question-answer tests to improve clarity and functionality
• feat: Add download script for Hugging Face dataset splits with support for JSON and Parquet formats
• Refactor Q/A system to support grouped answers and remove legacy structures
• Refactor HF download/upload dialogs to use repo ID, revision, and split parameters
• feat: Add confidence sorting feature to Dataset Explorer with UI toggle
• feat: Enhance Dataset Explorer with confidence score display and natural sorting
• Refactor media playback architecture with backend support
• Add support for tracking parquet files in GUI tests and visualization tool
• feat: Enhance upload_dataset_to_hf tool to create missing repos and branches during upload
• feat: Add upload_dataset_to_hf tool for uploading OSL datasets to Hugging Face
• feat: Implement video conversion tool to generate 224p copies from OSL JSON dataset
• feat: Add script to merge MVFouls classification labels into XFoul VQA annotations
• feat: Enhance shard handling in upload dialog and CLI; add shard size configuration
• Refactor media controller integration and enhance frame preview functionality
• feat: Update inference and training managers to use new model API; enhance prediction handling and add tests
• refactor: Migrate tools to opensportslib and update documentation
• feat: Add application metadata and shortcuts help text; enhance main window with help menu