Week 2 - Convert Website from Tornado to Flask and Fix errors

[ManasMadan]

Week 2 PR Description:

This PR covers the updates and fixes implemented in Week 2. Below are the detailed tasks and changes:

Tasks:

1. Updated Versions:

   • Updated Python to version 3.

2. Migration:

   • Migrated the website framework from Tornado to Flask.

3. Authentication:

   • Implemented authentication within the Flask framework.

4. CRUD Operations:

   • Implemented CRUD operations using AWS.

5. SocialCalc:

   • Updated the code to fix SocialCalc errors ensuring compatibility with the latest changes.

6. Templates:

   • Converted Tornado templates to Jinja templates for Flask.

7. Import/Export:

   • Implemented import/export functionality supporting the following formats: MSC, MSCE, CSV, PDF, HTML, XLSX, and XLX.

Checklist:

• [X] Verify Python version update to Python 3.
• [X] Test the migrated website on Flask.
• [X] Ensure Flask authentication is working as expected.
• [X] Verify CRUD operations with AWS.
• [X] Test SocialCalc functionality with latest updates.
• [X] Review and finalize conversion of Tornado templates to Jinja templates.
• [X] Test import/export functionality for all specified formats.

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Merging this PR closes Issue #11