Add disableChunk (#41)

* Add `disableChunk`

Function to disable chunk or code splitting, see: facebook/create-react-app#5306 for more info

* fix: export disable chunk function

index.js

@@ -235,6 +235,20 @@ const watchAll = () => config => {
   return config;
 };
 
+// to be used to disable chunk according to:
+// https://github.com/facebook/create-react-app/issues/5306#issuecomment-433425838
+const disableChunk = () => config => {
+  config.optimization.splitChunks = {
+    cacheGroups: {
+        default: false,
+    },
+  };
+
+  config.optimization.runtimeChunk = false;
+
+  return config;
+};
+
 module.exports = {
   override,
   addBundleVisualizer,
@@ -253,5 +267,6 @@ module.exports = {
   watchAll,
   babelInclude,
   addBabelPreset,
-  addBabelPresets
+  addBabelPresets,
+  disableChunk
 };