Refactor JS file Using Class

[GeekyHacks]

In this pull request, I did the following:

• Refactor JS file using class to add the book item
• Add CSS styling to match the required design using sass
• Fix linter errors

[OyePriscilla]

Hi @GeekyHacks and @Bhekisile 👍 ,

Your project is complete! There is nothing else to say other than... it's time to merge it
Congratulations! 🎉

Highlights

Used JavaScript classes ✔️
Implemented class methods to add and remove books. ✔️
App worked as expected ✔️

Optional suggestions

Every comment with the [OPTIONAL] prefix won't stop the approval of this PR. However, I strongly recommend you to take them into account as they can make your code better. Some of them were simply missed by the previous reviewer and addressing them will really improve your application.

Cheers and Happy coding!👏👏👏

Feel free to leave any questions or comments in the PR thread if something is not 100% clear.
Please, remember to tag me in your question so I can receive the notification.

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