Herald queries correctly label Object Rules

Summary: Fixes T7730. Herald queries used to incorrectly label object rules as global rules. An object rule is now labeled as such.

Test Plan: Made a few rules and looked at the herald query page.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin, epriestley

Maniphest Tasks: T7730

Differential Revision: https://secure.phabricator.com/D12259