Add Prettier code auto-formatting

[amyngb]

User Story
AS A user interested in Free Code Camp Columbus
I WANT to navigate an attractive website with superior quality and engineering practices
SO THAT I can be interested to code for free

Prettier is an opinionated code formatter with support for JavaScript, CSS and JSON. https://prettier.io/docs/en/index.html

Add Prettier code autoformatting to the code base, via a pre-commit git hook: https://prettier.io/docs/en/precommit.html

Here are the recommended steps for setting it up in Create-React-App: https://create-react-app.dev/docs/setting-up-your-editor/#formatting-code-automatically

Acceptance Criteria

1. Prettier
   GIVEN I am a developer for Free Code Camp Columbus
   WHEN I write code and commit a file
   THEN the code is automatically formatted according to a standard

[readysetagile]

Moving back to "Ready to be staged". This feature is not in production yet