message: chore(web): patch postcss to avoid deprecation message with Node.js 16
diff: @@ -12,3 +12,10 @@ sed -i.bak 's/warn=onWarning;/warn=function(){};/g' node_modules/next/dist/build
  # Removes "<title> should not be used in _document.js" warning.
  # Reason: We want title and other SEO tags to be pre-rendered, so that crawlers could find them.
  sed -i.bak "s|console.warn(\"Warning: <title> should not be used in _document.js's <Head>. https://err.sh/next.js/no-document-title\");||g" node_modules/next/dist/pages/_document.js
  +
  +
  +# Removes the line with `"./": "./"` from package.json of the postcss package
  +# Reason: To avoid this message when using Node.js 16:
  +# #(node:3449580) [DEP0148] DeprecationWarning: Use of deprecated folder mapping "./" in the "exports" field module resolution of the package at node_modules/css-loader/node_modules/postcss/package.json.
  +# Update this package.json to use a subpath pattern like "./*"
  +sed -i.bak '/"\.\/": "\.\/"/d' "node_modules/css-loader/node_modules/postcss/package.json"
  