docs(webpack): update for v4 (#3530)

public/docs/_examples/webpack/ts/config/webpack.common.js

@@ -62,7 +62,7 @@ module.exports = {
     // Workaround for angular/angular#11580
     new webpack.ContextReplacementPlugin(
       // The (\\|\/) piece accounts for path separators in *nix and Windows
-      /angular(\\|\/)core(\\|\/)(esm(\\|\/)src|src)(\\|\/)linker/,
+      /angular(\\|\/)core(\\|\/)@angular/,
       helpers.root('./src'), // location of your src
       {} // a map of your routes
     ),

public/docs/_examples/webpack/ts/config/webpack.dev.js

@@ -9,7 +9,7 @@ module.exports = webpackMerge(commonConfig, {
 
   output: {
     path: helpers.root('dist'),
-    publicPath: 'http://localhost:8080/',
+    publicPath: '/',
     filename: '[name].js',
     chunkFilename: '[id].chunk.js'
   },