Add context.Context to more methods (#21546)

This PR adds a context parameter to a bunch of methods. Some helper
`xxxCtx()` methods got replaced with the normal name now.

Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

services/issue/status.go

@@ -38,7 +38,7 @@ func changeStatusCtx(ctx context.Context, issue *issues_model.Issue, doer *user_
 		}
 	}
 
-	notification.NotifyIssueChangeStatus(doer, issue, comment, closed)
+	notification.NotifyIssueChangeStatus(ctx, doer, issue, comment, closed)
 
 	return nil
 }