added model for feedback , controllers to add and get course feedback and their corresponding routes

[sumitt-kun]

Issue Number: #163

Current behavior

Currently, the application does not support adding and viewing course reviews. This feature is necessary to allow users to provide feedback on courses.

Proposed changes

This pull request introduces a new model for course reviews, along with controllers to handle adding and viewing course reviews. These changes will allow users to submit reviews for specific courses and view all reviews associated with a course.

I have tested both the endpoints using postman and i am attaching the screenshots

Checks

• [] All commits in this Pull Request are signed and Verified by Github.

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[sumitt-kun]

hey @Yash636261 @JayeshYadav99 please note that I've not made any changes to the existing code and the diffs being shown are just as a result of prettier.

[sumitt-kun]

Hey @Yash636261 ,it's been more than 2 weeks since I added this PR . Any updates ?