Feat: Adds mediaDetails field in CoreImage block.

[theodesp]

Description

This PR adds a new field mediaDetails in CoreImage block that is used to extract more information about the associated image attachment without having to perform an additional query.

Relevant Tickets

#144

Testing

mediaDetails field is queryable in CoreImage block. For example

{
  posts {
    nodes {
      editorBlocks {
        ... on CoreImage {
          mediaDetails {
            file
            sizes {
              name
              width
              height
              sourceUrl
            }
            height
            width
          }
        }
      }
    }
  }
}

[changeset-bot]

🦋 Changeset detected

Latest commit: 2b0ca4a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@wpengine/wp-graphql-content-blocks	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[matthewguywright]

LGTM