chore: Rename isDataPanel to noQueries

pkg/api/frontendsettings.go

@@ -145,7 +145,7 @@ func (hs *HTTPServer) getFrontendSettingsMap(c *m.ReqContext) (map[string]interf
 			"info":         panel.Info,
 			"hideFromList": panel.HideFromList,
 			"sort":         getPanelSort(panel.Id),
-			"isDataPanel":  panel.IsDataPanel,
+			"noQueries":    panel.NoQueries,
 		}
 	}