Reference directly ConversationParticipant.quoted_table_name
Reference directly ConversationParticipant.quoted_table_name

flag=none
closes VICE-2732

Test Plan:
 - Tests pass
 - Cursory testing inbox filtering

Change-Id: I94c1e4e38acf45284736f56e599dc333dc687c62
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/291919
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>
Reviewed-by: Caleb Guanzon <54fa1f30d451e4f3c341a8f3c47c9215fd0be9c6@instructure.com>
Product-Review: Caleb Guanzon <54fa1f30d451e4f3c341a8f3c47c9215fd0be9c6@instructure.com>
QA-Review: Chawn Neal <908eabd8c84ff6c7c139535b8d37802d58ad1683@instructure.com>

sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms