chore: add recursion lab to frontend cert

[jdwilkin4]

We need a lab for them to do help them review working with recursion. Here is the workshop they will do before this https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures-v8/learn-recursion-by-building-a-decimal-to-binary-converter/step-109

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 an script.js file 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

[jdwilkin4]

A Good option here could be a JS only fibonacci

something similar to this

https://www.freecodecamp.org/learn/project-euler/project-euler-problems-1-to-100/problem-2-even-fibonacci-numbers