Add-ons Report Improvements by Xon 2.20.6

• Fix post report view permission check would fail if the original forum the report was generated from was deleted
• Fix approval queue 'report content' feature did not check the content was viewable before checking if the content could be reported.
• Fix unexpected approval queue rebuilds when it isn't required.

• Fix displaying points for a deleted warning in the reports comments
• Fix approval queue counts would be recomputed every time the approval queue was viewed
• Fix reports would be incorrectly fetched when recomputing approval queue counts
• Fix N+1 query behavior when adding reports to approval queue items

• Fix @Z61's Member Notes add-on integration when viewing a report