Silence mini-css-extract-plugin warning about css order conflict

silenceCssOrderWarning.js

// gatsby-node.js

exports.onCreateWebpackConfig = ({ stage, actions, getConfig, rules }) => {
  const config = getConfig();
  const miniCssExtractPlugin = config.plugins.find(
    (plugin) => plugin.constructor.name === 'MiniCssExtractPlugin'
  );
  if (miniCssExtractPlugin) {
    miniCssExtractPlugin.options.ignoreOrder = true;
  }
  actions.replaceWebpackConfig(config);
};