* refactor(selectoptiontest): move helper function out of grafana/ui so testing-lib isn't in bundle
* test(selectoptionintest): update import location of helper function
* test(amroutes): put back missing selectOptionInTest helper
* test(selectoptionintest): clean up remaining file imports / exports
* test(queryeditor): fix failing import
* refactor(grafana-ui): reuse selectOptionInTest in SelectBase test
* Added logic to reset metric name when changing namespace in Metric Query
* Added tests for reseting or not metricName onChange namespace
* Added tests for reseting or not metricName onChange namespace
* Removed comment
* Cleaned up tests
* Refactored namespace to be updated in utils
* Removed unecessary overrides for query and onQueryChange
* Renamed tests + used some instead of find