This PR adds most of the default native fields discussed in #3.
Breaking Changes
The Custom option now requires you to write a valid CSS selector instead of just the ID of the element. This change has been introduced to explicitly acknowledge users can select multiple metaboxes to move at once. Previously it would've required them to write something like first-id, #second-id.
Other Changes
Options inside the native select element are now grouped by category (Core, WooCommerce, Plugins, and Other)
Options from the WooCommerce and Plugins categories are now shown only when the required plugin is active (not just installed)
Instead of having a common option for both Yoast SEO and The SEO Framework, they now have independent options
This PR adds most of the default native fields discussed in #3.
Breaking Changes
first-id, #second-id
.Other Changes
select
element are now grouped by category (Core, WooCommerce, Plugins, and Other)