Graphite: second function as another function argument parsing error fix (#85224)
* update language around query editor parsing issues
* add special handling for second function arguments in divideSeriesLists
* additional check for first argument as series(string) and not a function
(cherry picked from commit 3c28a3d494)
Co-authored-by: Brendan O'Handley <brendan.ohandley@grafana.com>