move webpack config to file

Author: leonardodino

package.json

@@ -94,7 +94,7 @@
   "scripts": {
     "build": "run-s build:*",
     "build:deptree": "depcruise --exclude '^node_modules' --output-type dot src | dot -T svg > site/dist/dependencygraph.svg",
-    "build:webpack": "webpack --mode production --devtool source-map --output-library NetlifyClient --output-library-target umd",
+    "build:webpack": "webpack",
     "ci": "run-s test build",
     "prepublishOnly": "npm run build:webpack",
     "report": "nyc report --reporter=text-lcov | coveralls",

webpack.config.js

@@ -0,0 +1,8 @@
+module.exports = {
+  mode: 'production',
+  devtool: 'source-map',
+  output: {
+    library: 'NetlifyClient',
+    libraryTarget: 'umd',
+  },
+}