Feat/prettier

[christianmemije]

What's included?

• Sets up Prettier
• Also upgraded web-animations-js to 2.3.2 since it was causing npm i issues

Test Steps

• [x] Ensure you have Git >= 2.13.2
• [x] npm install
• [x] npm run prettier:check
• [x] Mess up formatting of a file
• [x] attempt to commit and verify pre commit hook complains

[christianmemije]

Husky requires Git >= 2.13.2 as of 3.0.0

[ghost]

Connected w/ @christianmemije and @JulieMarie about including prettier check into the CI/CD pipeline.

Is being looked/talked about outside the scope of this PR.