Create a Custom 404 Page for Better User Experience

[myselfshivams]

Currently, when users encounter a broken or non-existent link, the website shows the default 404 error page. To enhance the user experience, we should create a custom 404 page with a user-friendly design and helpful navigation options (e.g., a link back to the homepage or other important sections). This will help guide users when they land on a missing page, improving overall usability.

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gssoc

@dhairyagothi Please assign this task to me (@myselfshivams).

[github-actions]

Thank you for raising this issue! We'll look into it as soon as possible. Please ensure that the issue is not duplicate, and you read CONTRIBUTING.md carefully. Your contributions are highly appreciated! 😊

[dhairyagothi]

already there @myselfshivams check after running in local not visible in deployment