Upgrade webpack, remove service worker, other small optimizations

WebConfigGenerator/build.js

@@ -0,0 +1,83 @@
+const path = require('path');
+const webpack = require('webpack');
+const UglifyJSPlugin = require('uglifyjs-webpack-plugin');
+const HtmlWebpackPlugin = require('html-webpack-plugin');
+const { VueLoaderPlugin } = require('vue-loader');
+
+const config = {
+  mode: 'production',
+  entry: {
+    app: './src/app.js'
+  },
+  output: {
+    filename: 'js/[name].js',
+    chunkFilename: 'js/[id].chunk.js',
+    path: path.resolve(__dirname, '../docs')
+  },
+  module: {
+    rules: [
+      {
+        test: /\.vue$/,
+        loader: 'vue-loader',
+      },
+      {
+        test: /\.js$/,
+        exclude: /node_modules/,
+        use: {
+          loader: 'babel-loader',
+          options: {
+            presets: ['@babel/preset-env'],
+            plugins: ['@babel/plugin-syntax-dynamic-import']
+          }
+        }
+      },
+      {
+        test: /\.scss$/,
+        use: ['vue-style-loader', 'css-loader', 'sass-loader']
+      },
+      {
+        test: /\.sass/,
+        use: ['vue-style-loader', 'css-loader', { loader: 'sass-loader', options: { indentedSyntax: true } }]
+      },
+      {
+        test: /\.(mp4|webm|ogg|mp3|wav|flac|aac|woff2?|eot|ttf|otf|png|jpe?g|gif|svg)(\?.*)?$/,
+        use: {
+          loader: 'url-loader',
+          options: {
+            limit: 8192,
+            name: 'media/[name].[ext]'
+          }
+        }
+      }
+    ]
+  },
+  resolve: {
+    alias: {
+      vue$: 'vue/dist/vue.esm.js',
+    }
+  },
+  plugins: [
+    new HtmlWebpackPlugin({ filename: path.resolve(__dirname, '../docs/index.html'), template: 'index.html', inject: true, hash: false }),
+    new UglifyJSPlugin(),
+    new VueLoaderPlugin()
+  ]
+};
+
+const compiler = webpack(config);
+
+compiler.run((err, stats) => {
+  if (err) {
+    console.error(err.stack || err);
+    if (err.details) console.error(err.details);
+    return;
+  }
+
+  console.log(stats.toString({
+    assets: true,
+    cached: false,
+    children: false,
+    colors: true,
+    modules: false,
+    chunks: false
+  }));
+});