fix: fix mini-css-extract-plugin missing default export error (#1748)

Default exports should only be used for CSS modules.

lib/loaders/pitcher.js

@@ -120,7 +120,9 @@ module.exports.pitch = function (remainingRequest) {
         ...beforeLoaders
       ])
       // console.log(request)
-      return `import mod from ${request}; export default mod; export * from ${request}`
+      return query.module
+        ? `export { default } from  ${request}; export * from ${request}`
+        : `export * from ${request}`
     }
   }