Allow clip deletion/rotation to occur at specified time each day

Can we please have the option to delete old clips once a day at a set time? Deletion of old clips every minute is keeping drives spun up in unraid

For reference -https://github.com/blakeblackshear/frigate/issues/2343

Start by reading the current clip deletion and rotation scheduling behavior, then compare it with the referenced issue #2343 and the reported Unraid drive-spin-up problem. Done means users can configure deletion or rotation to run once daily at a specified time, with coverage for the scheduling behavior.

Written by the indexing model from the issue text.