Update Webpack in example project to version 5 (#173)

| Package | Current | Updated to |
| --- | --- | --- |
| webpack | 4.22.0 | 5.65.0 |
| webpack-cli | 3.1.2 | 4.9.1 |
| webpack-dev-server | 3.1.10 | 4.7.2 |

The updates resolve Dependabot alerts for the following packages:

- glob-parent;
- ansi-html;
- ansi-regex.

As of now there are also alerts for `json-schema` and `trim-off-newlines`,
but those are dependencies of `lerna` 4.0.0, which does not have an
update yet.

Signed-off-by: Rodrigo Pinto <rodrigo.pinto@calian.ca>

example/package.json

@@ -6,17 +6,17 @@
   "scripts": {
     "build": "webpack --mode=development",
     "watch": "webpack --watch --mode=development",
-    "start": "webpack-dev-server --host 0.0.0.0 --mode=development"
+    "start": "webpack serve --host 0.0.0.0 --mode=development"
   },
   "devDependencies": {
     "@types/lodash.throttle": "^4.1.4",
     "@types/node": "^8.0.26",
     "file-loader": "^2.0.0",
     "source-map-loader": "^0.2.4",
-    "ts-loader": "^5.2.2",
-    "webpack": "^4.22.0",
-    "webpack-cli": "^3.1.2",
-    "webpack-dev-server": "^3.1.10"
+    "ts-loader": "9.2.6",
+    "webpack": "^5.65.0",
+    "webpack-cli": "^4.9.1",
+    "webpack-dev-server": "^4.7.2"
   },
   "dependencies": {
     "lodash.throttle": "^4.1.1",

example/webpack.config.js

@@ -5,8 +5,8 @@ module.exports = {
     entry: ['./src/index.ts'],
     devtool: "source-map",
     devServer: {
-        contentBase: path.join(__dirname, 'public'),
-        disableHostCheck: true,
+        static: path.join(__dirname, 'public'),
+        allowedHosts: 'all',
         hot: true
     },
     module: {
@@ -39,4 +39,4 @@ module.exports = {
         filename: 'bundle.js',
         path: path.resolve(__dirname, 'lib')
     }
-};
+};