jobs: fix backwards job priorities.

Fix bug where jobs had the opposite of the intended priority. Populating saved searches had the
highest priority, while processing uploads had the lowest priority.

Caused by Delayed::Job and GoodJob having opposite interpretations of job priorities. In
Delayed::Job, lower numbers had higher priority, while in GoodJob, higher numbers have higher
priority. This was missed when migrating from Delayed::Job to GoodJob.

app/jobs/application_job.rb

@@ -11,6 +11,8 @@ class ApplicationJob < ActiveJob::Base
   class JobTimeoutError < StandardError; end
 
   queue_as :default
+
+  # Jobs with higher priority are processed first. Higher number = higher priority.
   queue_with_priority 0
 
   around_perform do |_job, block|