Fix: Unable to read ratings from Sony RAW files

[yeongjo]

Description

Fix: Unable to read ratings from Sony RAW files.
#517

Type of Change

• Bug fix
• New feature
• Breaking change
• Performance improvement
• Code refactoring
• Documentation update
• UI/UX improvement
• Build/CI or Dependency update

Changes Made

• Updated file_management:sync_metadata_from_xmp() to read metadata.
• Modified file_management:load_metadata() to check if sidecar_path.

Screenshots/Videos

Testing

• I have tested these changes locally and confirmed that they work as expected without issues

Test Configuration:

• OS: Windows 11
• Hardware: AMD 8845HS, NVIDIA 4060 Laptop, Ram 32GB

Checklist

• My code follows the project's code style
• I haven't added unnecessary AI-generated code comments
• My changes generate no new warnings or errors

Additional Notes

Attached a Sony RAW file with a 1-star rating for testing purposes.
DSC06118.zip

AI Disclaimer:

Please state the involvement of AI in this PR:

• This PR is entirely AI-generated
• This PR is AI-generated but guided by a human
• This PR was handwritten with AI assistance (spell check, logic suggestions, error resolving)
• This PR contains only blood, sweat, and coffee (AI-free)