{% comment %} Adds child modal button links, styled as a Bootstrap btn-group. Features: - View Transcript -- if the item has the field "object_transcript", this button is added along with a Bootstrap collapse containing the transcript content. If the value of "object_transcript" starts with objects/ it will look for the matching transcript file in the objects fold, otherwise it will use the value directly. Both will be rendered in Markdown. - View on Timeline -- if the item has a "date" value, links to Timeline page. - View on Map -- if item has "latitude" and "longitude" value, links to location on map. - Download -- if the item has "object_location" value, adds a download button along with the item format, or if the value is a YouTube or Vimeo link adds a "View on" link. {%- endcomment -%}