Adds Linaria to create-react-app project that uses react-app-rewired and customize-cra

addLinara.js

// need to add src/.linaria-cache to .gitignore. I had to move .linaria-cache inside src folder because CRA 
// does not allow imports outside src folder.

// I've no idea what is this shit behind babelOptions but it works.

const addLinaria1x = () => (config) => {
  addBabelPreset("linaria/babel")(config);
  const babelLoader = getBabelLoader(config);
  const { loader, options } = babelLoader;
  const { plugins, presets } = options;
  babelLoader.use = [
    { loader, options },
    {
      loader: require.resolve("linaria/loader"),
      options: {
        sourceMap: process.env.NODE_ENV !== "production",
        cacheDirectory: "src/.linaria-cache",
        babelOptions: {
          plugins,
          presets,
        },
      },
    },
  ];
  babelLoader.options = undefined;
  babelLoader.loader = undefined;
  return config;
};