Implement a comprehensive certificate generation and display system

[Hemavathi15sg]

Develop a robust certificate generation and display feature for the Course Registration System. The system should allow users to search for and view digital certificates for completed courses. Consider both backend and frontend requirements, integration with course data, security for certificate access, and an intuitive UI for searching and displaying certificates.

Key requirements:

• Users should be able to search for certificates by various parameters (e.g., user name, course, certificate ID)
• Digital certificates must be generated upon course completion
• Certificates should contain relevant course, user, and completion details
• Implement certificate display with a downloadable and printable view
• Integrate with backend and ensure secure certificate retrieval
• Add appropriate formatting, branding, and a verification method (such as unique QR code or certificate number)

Please split the implementation into well-defined subtasks as appropriate.