feat(backend): new question types

[KavikaPalletenne]

Adds support for new question types:

• short answer (existing impl changed)
• multi-select
• multi-choice
• drop-down

Significantly changes API, so frontend must be updated to reflect this.

[KavikaPalletenne]

Hey team,

I hope you're all doing well! I'm excited to share with you a new pull request that enhances our platform's capabilities and brings some valuable improvements. This PR introduces support for new question types and includes essential changes to our API, which will require corresponding updates on the frontend to maintain seamless integration.

What's Included:

• Short Answer (Existing Impl Changed): We've modified the implementation of the short answer question type to optimize its performance and make it more user-friendly.
• Multi-Select: Now users can select multiple options from a list of choices when answering questions, providing a more flexible and interactive experience.
• Multi-Choice: This new question type allows users to choose a single option from a list of choices, streamlining the assessment process.
• Drop-Down: We've added support for drop-down menus as a question type, offering a more compact and organized way of presenting options.

API Changes: The introduction of these new question types necessitated some significant changes to our API. As a result, we kindly request that the frontend team makes the necessary adjustments to ensure seamless compatibility with the backend.

How to Test: To validate the changes, we have conducted extensive testing on various scenarios and datasets. We encourage all team members to review this PR and, if possible, test it on your local environments. Any feedback, suggestions, or bug reports are highly appreciated.

Impact on Existing Features: Rest assured, we have taken great care to ensure backward compatibility with existing features. However, there might be some edge cases that we may have missed during testing. We'll be vigilant in addressing any issues that arise during the review process.

Contributor Recognition: I want to extend my appreciation to everyone who contributed to this pull request. It showcases the collective talent and dedication of our team in striving for excellence.

Let's collaborate and get this feature integrated as soon as possible to enhance our platform's functionality and provide our users with a richer experience.

Thank you all for your support and hard work!

Best regards, [Your Name]