Display post meta, term meta, comment meta, and user meta

Displays metadata in a metabox on the creation/editing pages for posts (any CPT), terms (any taxonomy), and users.
The metadata is shown in a human-readable format, organized and unserialized. This metabox will only be visible to administrator
users or users with the display_metadata_metabox capability.

As a developer, you often need to access and review the values of metadata (or properties) attached to posts, terms,
users, or comments. Whether it’s for debugging or optimizing custom functionalities, having a clear view of this data
is essential for ensuring your code interacts correctly with the underlying WordPress objects.

As a sysadmin, managing and cleaning up unnecessary meta fields is crucial for keeping the database lean and efficient.
By understanding which meta fields are…