BUG:Make testimonials carousel responsive

[komal-agarwal5]

Is there an existing issue for this?

• [X] I have searched the existing issues

What happened?

The moving carousel doesn't look responsive in phone mode It looks like this I want to make it like this

Record

• [X] I agree to follow this project's Code of Conduct
• [X] I'm a GSSOC'24 contributor
• [X] I want to work on this issue

[github-actions[bot]]

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