fix: upload bugs regarding the netwrok issue and diff extension files

[Shreyas-Microsoft]

Purpose

This pull request enhances the file upload experience in the FileUploadZone component by improving error handling, especially for network issues and file rejections. It introduces user-friendly error messages, auto-hides certain errors, and provides better feedback to users when uploads fail due to connectivity or invalid files. Additionally, the code now listens for network connectivity changes and updates the UI accordingly.

The most important changes are:

Network Error Handling Improvements:

• Added comprehensive detection of network errors during file uploads, including checks for offline status, error codes, and error messages, with user-friendly error messages shown in the UI. [1] [2] [3] [4] [5] [6] [7]
• Introduced listeners for browser online/offline events to automatically show or clear network error messages and update file statuses when connectivity changes.

File Rejection Feedback:

• Added logic to display detailed error messages for rejected files (e.g., wrong type or too large), with auto-hide after a timeout and manual dismiss support. [1] F97c2da6L583R583, F97c2da6L804R804, [2]

User Experience Enhancements:

• Improved the layout and styling for error messages and the upload area, ensuring messages are clear and visually distinct. [1] [2]
• Ensured error messages are cleared when appropriate, such as after successful uploads or when errors are dismissed. [1] [2] F97c2da6L804R804)

Minor Updates:

• Replaced the unused Lock icon with CircleX for consistent error iconography.
• (Note: There is a stray "kk" in the success message, which may be a typo.)

Does this introduce a breaking change?

• Yes
• No

Golden Path Validation

• I have tested the primary workflows (the "golden path") to ensure they function correctly without errors.

Deployment Validation

• I have validated the deployment process successfully and all services are running as expected with this change.

What to Check

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Other Information

[github-actions]

🎉 This PR is included in version 1.0.0 🎉

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