Remove transcripts from index when the supplemental files are deleted from MCO

[elynema]

Description

A user can delete a transcript or a caption that is marked to treat as a transcript from the Manage Files interface. When this happens, that text should also be removed immediately from the Solr index.

Done Looks Like

• [x] Deleted transcripts are removed from index
• [x] Deleted captions that are marked as transcripts are removed from the index
• [x] Captions that have the 'Treat as transcript' box unchecked and then saved should also be removed from index
• [x] Deleted transcripts / captions should also cause the item to move to 'no' in the Has Captions and Has Transcripts facets (if no other transcripts / captions exist)
• [x] User should not have to click 'Continue' on the Manage Files page for these changes to be propagated to Solr. - [ ] Investigate how to remove old deleted supplemental files from index on avalon-dev

[elynema]

Has Caption / Has transcript is based off info in the media object in the index. This is not updated until you hit save/continue and the media object is updated in the index.

[elynema]

This issue will not remove old previously deleted indexed supplemental files from the index. Dananji has noted deleted transcripts are still showing results for content search.