Extract graphql schema into package

Use yarn workspaces

Convert server code to ESM

Utilize fs-extra to write JSON with EOF newline

Set lang from locale

Refactor MyDocument.getInitialProps as static method

Use relative graphql url

Switch locale

Add script to extract messages

Fix Link warning

Load intl messages from file

Add react-intl

Alias app for absolute import

Compress responses

Use apollo-link-schema for SSR