Shorten the duration of the Aphlict log notifications.

Summary: Currently, the Aphlict log notifications show for the same duration as normal Aphlict notifications (12 seconds). I find this to be far to long and usually find myself clicking all of the log notifications that I am not interested in.

Test Plan: Loaded a page and saw the debug notifications dismiss after roughly three seconds.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D9409