Enhancing the UI of "Pomodoro spiritual Break" webpage

[suhanigupta23]

Description

We can enhance the "Pomodoro spiritual Break" webpage by changing the background maintaining with consistency like other webpages.Changing the nav bar colour like the others webpage nav bar.
Also enhancing the divs of the definition, features etc.

Also changing the border colour of the below div as it is not visible and enhancing it.

Please assign me this issue under GSSOC'24.

[github-actions]

Congratulations, @suhanigupta23! 🎉 Thank you for creating your issue for Moksh. Your contribution is greatly appreciated and we look forward to working with you to resolve the issue. Keep up the great work! Should you have any queries or require guidance, do not hesitate to ask.

[akshitagupta15june]

Go for it!