fix #336 drag and drop bug

[stefan-laux]

🔗 Linked issue

#336

❓ Type of change

• 📖 Documentation (updates to the documentation, readme or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

fix drag and drop bug

📝 Checklist

• I have linked an issue or discussion.
• It's submitted to the main branch
• When resolving a specific issue, it's referenced in the PR's title (e.g. fix #xxx[,#xxx], where "xxx" is the issue number)
• I have updated the documentation accordingly.
• All tests are passing
• New/updated tests are included
• I have updated the "fix" section inside docs/changelog.md explaining the changes I contributed

If adding a new feature, the PR's description includes:

• A convincing reason for adding this feature (to avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it)

Other information:

[Copilot]

Pull Request Overview

This PR fixes a drag and drop bug in the six-file-upload component where dropped files were not being processed. The fix adds event parameter typing and proper file handling when files are dropped onto the upload component.

Key Changes

• Added DragEvent parameter to the dropHandler method
• Implemented file handling logic to process dropped files via event.dataTransfer.files
• Updated changelog to document the fix

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
libraries/ui-library/src/components/six-file-upload/six-file-upload.tsx	Added event parameter and file processing logic to the drop handler to properly handle dragged files
docs/changelog.md	Documented the drag and drop bug fix in the changelog

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[davidemarcoli]

Looks good, weird that there wasn't anything in there

[colinscz]

LGTM! 🚀