Setup Prettier

[jtfairbank]

Prettier is a code styling tool to help provide a consistent code style throughout our codebases.

The backend project already has this setup in this Pull Request to see how they did it. Pay attention to the scripts that are setup and packages that are installed in package.json, as well as the configuration in .prettierrc and the ignore file .prettierignore which you'll want to customize for the Frontend project.

• Setup Prettier
• Add package.json commands to run it.
• Document the commands in the readme.md file.