Avoid `main.js` being generated in `dist`

when were generating only the CSS

package.json

@@ -11,12 +11,12 @@
     "README.md"
   ],
   "scripts": {
-    "converse.css": "webpack --type=css --mode=development",
+    "converse.css": "webpack --type=css --mode=development && rm -r tmp",
     "converse.min.css": "npm run converse.css && cleancss --skip-rebase dist/converse.css > dist/converse.min.css",
     "converse.js": "webpack --mode=development",
     "converse.min.js": "npm run converse.js && webpack --mode=production",
 	"converse-headless.js": "webpack --mode=development --type=headless",
-	"converse-headless.min.js": "npm run converse-headless.css && webpack --mode=production --type=headless",
+	"converse-headless.min.js": "npm run converse-headless.js && webpack --mode=production --type=headless",
     "clean": "rm -rf node_modules stamp-npm dist *.zip",
     "build": "npm run converse.min.css && npm run converse-headless.min.js && npm run converse.min.js",
     "prepare": "npm run build"

webpack.config.js

@@ -15,7 +15,7 @@ const config = {
         filename: 'converse.js'
     },
     devtool: 'source-map',
-    plugins: [new MiniCssExtractPlugin({filename: './converse.css'})],
+    plugins: [new MiniCssExtractPlugin({filename: '../dist/converse.css'})],
     module: {
         rules: [
         {
@@ -60,7 +60,7 @@ const config = {
                 loader: 'file-loader',
                 options: {
                     name: '[path][name].[ext]',
-                    outputPath: './'
+                    outputPath: '../dist/'
                 }
             }
             ]
@@ -184,7 +184,10 @@ function parameterize () {
     if (type === 'css') {
         console.log("Building only CSS");
         config.entry = path.resolve(__dirname, 'sass/converse.scss');
-        config.output = {};
+        config.output = {
+            path: path.resolve(__dirname, 'tmp'),
+            filename: 'css-builder.js'
+        }
     }
 
     if (mode === 'production') {