title: angular build size with sass is huge
body: <p>So, I'm working on big app and all components have their own sass file style (we use ViewEncapsulation.Native) but I build <code>npm run build --stats-json --prod --aot</code> and check the stats with <a href="https://chrisbateman.github.io/webpack-visualizer/" rel="noreferrer">https://chrisbateman.github.io/webpack-visualizer/</a> I get this</p>
  
  <p><a href="https://i.stack.imgur.com/geutm.png" rel="noreferrer"><img src="https://i.stack.imgur.com/geutm.png" alt="enter image description here"></a></p>
  
  <p>All those big orange blocs on the right are sass.shim.ngstyle.ts files and each one is like 195k !</p>