Create Custom 404 Page

[monarxxjain]

Currently, when users navigate to a non-existent route on the website for e.g. http://localhost:3000/xyz, they encounter a default black page, which does not align with the overall theme and aesthetic of the website. This issue aims to enhance the user experience by creating a custom 404 page that seamlessly integrates with the website's theme, providing users with a more cohesive and visually appealing error page when they encounter non-existent routes.

Task to be Done:

• Design and create a custom 404 page that matches the theme and design elements of the website.
• Ensure that the custom 404 page provides a clear indication to users that the requested page could not be found.
• Integrate the custom 404 page into the website's routing system so that it appears when users navigate to non-existent routes.
• Share the screeshot of your designed page in your pull request.

[MrImmortal09]

please review the PR 😃