Rewrite babel-plugin-named-exports-order as a webpack-loader

[valentinpalkovic]

In Webpack5-based projects, a babel plugin is in place to adjust the compiled code to add meta-information about the order of stories since Webpack5 might shuffle the order. In the future, the Webpack5 builder will not only support Babel, but another compiler like SWC. Therefore, we have to change the implementation of this transformation for being compiler agnostic.