BUG: Testimonials and header in the "Careers" section not optimized for dark mode

[AnandK-pm]

Is there an existing issue for this?

• I have searched the existing issues

What went down?

The text and overall UI in the testimonials of careers section aren't optimized for dark mode. I intend to fix this to ensure a user friendly experience.

Record

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

[github-actions]

Congratulations, @AnandK-pm! 🎉 Thank you for creating your issue. Your contribution is greatly appreciated, and we look forward to working with you to resolve the issue. Keep up the great work!

We will promptly review your changes and offer feedback. Keep up the excellent work! Kindly remember to check our contributing guidelines