Fixed export bug.

[Tharickv75]

Type of Change

What type of change does this PR introduce? Mark all that apply:

• 🐛 Bug Fix
• 🚀 Feature Request
• 🔄 Refactor
• 📖 Documentation Update
• 🔧 Other (Please specify):

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Summary

What does this PR address?

• Fixes export functionality bug where documents were exporting automatically
• Adds document chunk review and editing capability for users

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Description

Bug Fixes:

• Bug: Documents were exporting automatically without user explicitly clicking the export button
• Root Cause: Export functionality was triggered on document processing completion rather than user action
• Resolution: Modified the export logic to only trigger when the user explicitly clicks the export button

Feature Request:

• Feature: Document chunk review and editing capability
• Motivation: Users need to review and modify individual chunks of processed documents for accuracy and customization
• Implementation: Added UI components to display document chunks separately with edit functionality for each chunk

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Changes Made

High-Level Summary:

1. Modified export logic to bind exclusively to export button click event
2. Added chunk review interface displaying individual document segments
3. Implemented edit functionality for each document chunk
4. Added save mechanisms for edited chunks

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Checklist

Mark all that apply:

• Code follows the project's coding guidelines.
• Tests have been added or updated for new functionality.
• Documentation has been updated (if applicable).
• Existing tests pass locally with these changes.
• Any dependencies introduced are justified and documented.

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Steps to Test

1. Process a document through the system
2. Verify export only occurs when explicitly clicking the export button
3. Navigate to the document review section
4. Verify all document chunks are displayed separately
5. Test editing functionality on individual chunks
6. Save changes and verify they persist

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Additional Context

The chunk editing feature allows for granular control over document content, enabling users to refine AI-generated content before final export.

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Questions or Concerns

• Should there be a limit on the number of edits per chunk?
• Do we need version history for chunk edits?