Support SCSS, CSS, JSON, YAML, and JavaScript formatting using Prettier

[jrgriffiniii]

This should integrate the Prettier in order to ensure that SCSS and CSS files are formatted using the package.json file, as well as ensuring that CircleCI automatically checks to ensure that the source code files comply with formatting rules for every CI build. Please see pulibrary/tigerdata-app#1104 for reference.

Acceptance Criteria

• Install Prettier using yarn add --dev prettier
• Check for any and all errors within *scss and *css files and commit those changes so the ci build will be clean
• Correct the errors using the rule recommendations by Prettier
• Ensure that the CircleCI configuration automatically checks the source code base using prettier for every build