Fix npm start in website/

Summary: We can't use spread syntax here.  Prefer Array.concat().

Reviewed By: sahrens

Differential Revision: D6014142

fbshipit-source-id: d2759893ea2df69975843ae821fb08b16b1d5d7c

website/server/docsList.js

@@ -102,8 +102,7 @@ const stylesWithPermalink = [
   '../Libraries/StyleSheet/TransformPropTypes.js',
   '../Libraries/Components/View/ShadowPropTypesIOS.js',
   '../Libraries/Components/View/ViewPropTypes.js',
-  ...stylesForEmbed,
-];
+].concat(stylesForEmbed);
 
 const viewPropTypes = '../Libraries/Components/View/ViewPropTypes.js';
 

website/server/extractDocs.js

@@ -259,8 +259,7 @@ function getViewPropTypes() {
     viewPropTypesResolver,
     [
       viewPropTypesConversionHandler,
-      ...docgen.defaultHandlers,
-    ]
+    ].concat(docgen.defaultHandlers)
   );
 }