feat : dark mode

[Puskar-Roy]

🎯 Title and Issue Number

Closes #<issue_no>

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• I have mentioned the issue number in my Pull Request.
• I have gone through rules of when PR will get merged.
• I have commented my code, particularly in hard-to-understand areas.
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[Puskar-Roy]

Hello @Puskar-Roy, thank you for your pull request! We will review it shortly. 😇❣️
Your contributions help us grow and improve our project. Please make sure you have read and followed our CONTRIBUTING GUIDELINES.
Your efforts are appreciated, and we value your participation in our community. Don't forget to ⭐ our repository!
Happy coding!✨

[Puskar-Roy]

Hey @Puskar-Roy! We're excited to let you know that your pull request has been merged into the APIverse🚀🎁
Your commitment, effort, and expertise have greatly influenced our project, and we're incredibly thankful for your contributions.😇
Your code is now part of our expanding ecosystem, assisting developers worldwide in creating exceptional APIs.❣️🔥
Happy Coding! ✨ We look forward to seeing you again soon!❣️