Added Book Icon for CodeView component

[adarshsaraogi]

Added the book icon on CodeView component, and took the Reference from the figma layout Style.
and also added the feather-icons-react dependencies in package.json file for using the Book icon.
#31

[diego3g]

We already have the react-icons library so you can import the book icon like:

import { FiBook } from 'react-icons/fi`;

So we do not need the react-feather library.

[adarshsaraogi]

@diego3g i have made the changes.