Update copy-webpack-plugin, css-loader, html-webpack-plugin, style-loader, webpack and webpack-cli

Signed-off-by: David Mehren <git@herrmehren.de>

package.json

@@ -175,7 +175,7 @@
     "babel-polyfill": "^6.26.0",
     "babel-preset-env": "^1.7.0",
     "babel-runtime": "^6.26.0",
-    "copy-webpack-plugin": "^5.0.5",
+    "copy-webpack-plugin": "^6.0.3",
     "css-loader": "^3.2.0",
     "eslint": "^5.9.0",
     "eslint-config-standard": "^12.0.0",

webpack.common.js

@@ -129,27 +129,28 @@ module.exports = {
       filename: path.join(__dirname, 'public/views/build/slide-pack-scripts.ejs'),
       inject: false
     }),
-    new CopyWebpackPlugin([
+    new CopyWebpackPlugin({
+      patterns: [
         {
           context: path.join(__dirname, 'node_modules/mathjax/unpacked'),
-        from: {
-          glob: '**/*',
+          from: '**/*',
+          globOptions: {
             dot: false
           },
           to: 'MathJax/'
         },
         {
           context: path.join(__dirname, 'node_modules/mathjax/fonts'),
-        from: {
-          glob: '**/*',
+          from: '**/*',
+          globOptions: {
             dot: false
           },
           to: 'fonts/'
         },
         {
           context: path.join(__dirname, 'node_modules/emojify.js'),
-        from: {
-          glob: 'dist/**/*',
+          from: 'dist/**/*',
+          globOptions: {
             dot: false
           },
           to: 'emojify.js/'
@@ -174,7 +175,8 @@ module.exports = {
           from: 'plugin',
           to: 'reveal.js/plugin'
         }
-    ]),
+      ]
+    }),
     new MiniCssExtractPlugin()
   ],