Enhance admin permissions over Campaigns

### Allow admins to trigger Campaigns update immediately
It's confusing to update a TM and not be able to trigger an immediate update of the database

### Allow admins to delete Campaigns
If a campaign is included erroneously, it would be best if admins could search for and delete them themselves rather than have to ping someone with direct access to the database

The issue names no files, tests, or entry points; begin by locating the Campaigns administration flow and existing admin permission checks. Done when admins can trigger an immediate database update and search for and delete erroneous Campaigns, with both actions covered by appropriate tests.

Written by the indexing model from the issue text.