title: extract-text-webpack-plugin replacement in webpack 5
body: <p>I'm working on the project upgrading from webpack 3 to webpack 5. In the project, it was using raw-loader and extract-text-webpack-plugin to parse imported html file(angular component), then combine all html files and output one single html. Here is the webpack config snippet：</p>
  <pre><code>.
  .
  .
  # initialize the extractText plugin
  const extractHTML = new ExtractTextPlugin({
      filename: `${assetsPattern}.[contenthash].html`,
      allChunks: true
  .
  .
  .
  # setup the loader
  {
      test: /\.html$/,
      loader: extractHTML.extract('raw-loader')
  }
  .
  .
  .
  </code></pre>
  <p>As it's customized application, I require the html as a single file.</p>
  <p>But in webpack 5, the extract-text-webpack-plugin is deprecated. The recommanded replacement of this plugin is mini-css-extract-plugin, but it's specified for css, seems not work for other file types. By using asset module(asset/resource) from webpack 5, it will output multiple html files.</p>
  <p>Currently I'm blocked by this, is there any replacement of extract-text-webpack-plugin can fulfill my requirement? or is there any other solutions for this?</p>