Navigation: Add the new badge to the SLO reports nav item (#105707)

* attempt to add slo reports badge

* fix build

* add new badge for reports for subitem in grafana-slo-app

pkg/services/navtree/navtreeimpl/applinks.go

@@ -174,6 +174,11 @@ func (s *ServiceImpl) processAppPlugin(plugin pluginstore.Plugin, c *contextmode
 				IsNew:      true,
 			}
 			alertsSection.Children = append(alertsSection.Children, serviceLink)
+
+			reportsNavLink := navtree.FindByURL(alertsSection.Children, "/a/grafana-slo-app/reports")
+			if reportsNavLink != nil {
+				reportsNavLink.IsNew = true
+			}
 		}
 	}