🐛 Fix side nav

There was a small UI bug where we were conditionally adding the API section for draft pages.
In production this was leaving a small hoverable element because the undefined variable in the array was still iterated over to create a UI element.

Test plan:
* Expect visual regression to be fixed in production.
* Expect draft pages to be available in development.

src/navigation/sideNavConfig.js

@@ -18,9 +18,9 @@ export default [
       { title: 'Farmlands' },
     ]
   },
-  import.meta.env.MODE === 'development' && {
+  ...import.meta.env.MODE === 'development' ? {
     title: 'API',
     subTitle: 'For developers',
     icon: 'Settings',
-  },
+  } : [],
 ];