added border radius to make cards good looking

[imjaglan]

added some top border-radius to make the cards more good looking and better UI

[Anmol-Baranwal]

Do you think, this code improves the existing project?

Please make significant changes before making a PR so that it meets the standard.

[github-actions[bot]]

Thank you @imjaglan for taking out your valuable time in order to contribute to our project. Looking forward for more such amazing contributions :)