Add contextual links for embedded media content (i.e. image)

[natebyerley]

Motivation

Originally requested by Alexis L Blue from news.arizona.edu in this ticket: SCTASK0055839

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

We are currently unable to edit captions for images that appear within the body of a story when we are in the edit view for that story. We have to leave the story, open the image in a new tab to find the file name, and then locate that file in the media section of the website and edit it there.

Examples

Here is an example page on News with embedded images:
https://news.arizona.edu/news/harvests-wildfires-epidemics-how-jet-stream-has-shaped-extreme-weather-europe-centuries

Proposed Resolution

Add contextual links to allow editor to access image config and change things like: crop, caption, alt text, etc. from a page (News, Event, Page, Person) actively being edited.

Describe alternatives you've considered

Brian: We might be able to add a button linking to the media entity in the image contextual toolbar in CKEditor. I’m guessing that would not be trivial though.

Chris: Those links were explicitly removed https://www.drupal.org/project/drupal/issues/3174252