Feature-shopping cart-PayPalpayment

[santhoshboinapally]

Description

When we click Proceed to Payment button on shopping cart it display PayPal Button and Card Payment Button. Please provide a short summary explaining what this PR is about.

Fixes #237

How to test?

npm run dev Add Products to shopping cart and click proceed to payment button You can see two buttons. User can choose Two different type of payment one with PayPal and another one with Card. Please provide a short summary how your changes can be tested?

Checklist

• [x] I have performed a self-review of my own code
• [x] I have followed the name conventions for CSS Classnames and filenames, Components names and filenames, Style filenames, if you are in doubt check the the project README.MD and here https://github.com/HackYourFuture-CPH/curriculum/blob/master/review/review-checklist.md
• [x] I have commented my code, particularly in hard-to-understand areas, if you code was simple enough mark the box anyway
• [x] I have made corresponding changes to the documentation, if you code was simple enough mark the box anyway
• [x] This PR is ready to be merged and not breaking any other functionality