NPM fix.

src/Squidex/package.json

@@ -5,13 +5,13 @@
   "license": "MIT",
   "repository": "https://github.com/SebastianStehle/Squidex",
   "scripts": {
-    "prepare": "cpx node_modules/oidc-client/dist/oidc-client.min.js wwwroot/scripts/",
-    "start": "webpack-dev-server --config app-config/webpack.run.dev.js --inline --port 3000 --hot",
+    "copy": "cpx node_modules/oidc-client/dist/oidc-client.min.js wwwroot/scripts/",
+    "start": "npm run copy && webpack-dev-server --config app-config/webpack.run.dev.js --inline --port 3000 --hot",
     "test": "karma start",
     "test:coverage": "karma start karma.coverage.conf.js",
     "test:clean": "rimraf _test-output",
     "tslint": "tslint -c tslint.json -p tsconfig.json app/**/*.ts",
-    "build": "webpack --config app-config/webpack.run.prod.js",
+    "build": "npm run copy && webpack --config app-config/webpack.run.prod.js",
     "build:clean": "rimraf wwwroot/build"
   },
   "dependencies": {