Fix IssuesController#show degradation including project on loaded notes

Paco Guzman requested to merge includes-projects-to-render-issue-notes into master

What does this MR do?

Resolve N+1 problem with notes and project on IssuesController#show action as detected here

On an issue with 8 notes, using sherlock we make 50 database queries instead 71

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Why was this MR needed?

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