Improve image metatag

[tadean]

Motivation

Currently, on most quickstart content types, og_image depends upon field_media_az_image, and image has no default. Some quickstart content types do not have field_media_az_image, so this can result in empty og_image metatags, and image is often empty unless it's being curated.

Is your feature request related to a problem? Please describe.

Empty image or og_image tags.

Proposed Resolution

Describe the solution you'd like

Provide a new token that is generated in precedence from a variety of quickstart media fields, such as:

• field_media_az_image
• field_az_media_thumbnail_image
• field_az_photos
• field_az_publication_image