Fix #4544: Show limited view of other user's uploads on the upload index.

* Show completed uploads to other users.
* Don't show failed or incomplete uploads to other users.
* Don't show tags to other users.
* Delete completed uploads after 1 hour.
* Delete incomplete uploads after 1 day.
* Delete failed uploads after 3 days.

app/logical/danbooru_maintenance.rb

@@ -2,11 +2,11 @@ module DanbooruMaintenance
   module_function
 
   def hourly
+    safely { Upload.prune! }
   end
 
   def daily
     safely { PostPruner.new.prune! }
-    safely { Upload.prune! }
     safely { Delayed::Job.where('created_at < ?', 45.days.ago).delete_all }
     safely { PostDisapproval.prune! }
     safely { regenerate_post_counts! }