Webpack now runs in development or production mode

`yarn develop` will run Webpack in development mode for easier
debugging. `bundle-build` will run Webpack in production mode and submit
optmized artifacts in the bundle.

webpack.config.js now emits which mode it's selecting to console.log

bundle-build

@@ -5,7 +5,7 @@
 # to that directory.
 #
 echo "Generating Webpack build artifacts..."
-yarn webpack --config webpack.config.js
+NODE_ENV=production yarn webpack --config webpack.config.js
 
 #
 # Copy game/assets and other static assets dist
@@ -36,4 +36,4 @@ rm -Rf dist
 echo ""
 
 echo "Game bundle file:"
-ls -lh ./bundle/${FILENAME}
+ls -lh ./bundle/${FILENAME}

bundle-submit.js

@@ -41,6 +41,8 @@ import fetch, { FormData, fileFrom } from 'node-fetch';
       },
       body: formData,
     });
+    const message = await response.text();
+    console.log(message);
   } catch (error) {
     console.log('ERROR:', error.message, error);
   } finally {

webpack.config.js

@@ -10,12 +10,14 @@ const __dirname = dirname(fileURLToPath(import.meta.url)); // jshint ignore:line
 
 import MiniCssExtractPlugin from 'mini-css-extract-plugin';
 
+const webpackMode = (process.env.NODE_ENV === 'production') ? 'production' : 'development';
+console.log('Webpack mode:', webpackMode);
+
 export default {
   entry: {
     'game-app': './game/js/game-app.js',
   },
-//  mode: 'development',
-  mode: 'production',
+  mode: webpackMode,
   output: {
     filename: '[name].bundle.js',
     path: path.resolve(__dirname, 'dist'),
@@ -63,4 +65,4 @@ export default {
       },
     ],
   },
-};
+};