added webpack back

Author: spkellydev

package.json

@@ -38,6 +38,7 @@
     "eslint": "^4.16.0",
     "eslint-config-developit": "^1.1.1",
     "karmatic": "^1.0.6",
-    "microbundle": "^0.4.3"
+    "microbundle": "^0.4.3",
+    "webpack": "^4.29.6"
   }
 }