Make clear that the API fields are optional

[GrimLink]

Currently when making a new website for the WPCI content you have 5 options;

• Name
• Base Url, of CMS content site
• API username
• API password
• Enabled

The current UX is unclear what the fields require from you as a maintainer of the store.

At least put the API fields onder an optional section (like a magento tab) for extra config options,
or add a label onder the API fields marking them optional.

Because now everything looks required.