Move url to dev dependencies

It's only needed when bundling for the browser

Author: realityking

rollup.config.js

@@ -42,6 +42,11 @@ const buildCjs = {
       return true;
     }
 
+    // url is a built-in module and should not be bundled either
+    if (id === 'url') {
+      return true;
+    }
+
     return false;
   },
   plugins: [