chore: add first lab for OOP in frontend cert

[jdwilkin4]

We need a lab for them to do help them review working with OOP.
Here is the workshop they will do before this
https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures-v8/learn-basic-oop-by-building-a-shopping-cart/step-60

They will also know all of the fundamentals (strings, functions, objects, arrays, etc)
They will also know about higher order functions like map, filter, reduce.
And they will know DOM basics like getElementById, querySelector, querySelectorAll, click events, change events.

Acceptance criteria

• create a new folder of the project in the frontend-cert/js-projects directory
• add your completed project in that new folder
• create a markdown file for your proposed user stories. You should call it user-stories.md and place it in your new project folder