Setup background cron job to cleanup searches table

[cjcolvar]

Description

The searches DB table can fill up a DB with lots of rows of data that doesn't get used anywhere in avalon. Blacklight provides a rake task to clean up this table. Instead of creating a cron job to call the rake task Avalon could provide a background job that runs regularly with sidekiq-cron like similar jobs for cleaning up sessions or stream tokens.

Done Looks Like

• Rake task added for routine cleanup of search DB table