bugfix: add bodyParser to read order json

[pauldotyu]

Purpose

• Fixes a bug in the order checkout page in the store-front app where request body was not being sent to order-service

Does this introduce a breaking change?

[ ] Yes
[x] No

Pull Request Type

What kind of change does this Pull Request introduce?

[x] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

How to Test

• Run the store-front and manually submit an order

git clone https://github.com/Azure-Samples/aks-store-demo
cd aks-store-demo
git checkout fix-checkout
cd src/store-front
docker compose up --build
# in a new terminal
npm run serve

• Test the code

• Navigate to store frontend site
• Add an item to the cart
• Checkout

What to Check

Verify that the following are valid

• Open RabbitMQ management portal (http://localhost:15672) and login
• Ensure order queue exists with 1 order

[chzbrgr71]

LGTM