Alerting: Run queries (#33423)

* alertingqueryrunner first edition

* added so we always set name and uid when changing datasource.

* wip.

* wip

* added support for canceling requests.

* util for getting time ranges for expression queries

* remove logs, store data in state

* added structure for marble testing.

* change so the expression buttons doesnt submit form.

* fixed run button.

* replaced mocks with implementation that will set default query + expression.

* fixed so we set a datasource name for the default expression rule.

* improving expression guard.

* Update public/app/features/alerting/components/AlertingQueryEditor.tsx

Co-authored-by: Hugo Häggmark <hugo.haggmark@grafana.com>

* fixed some nits.

* some refactoring after feedback.

* use grafanthemev2

* rename grafanatheme

* fixing so we convert to correct relative time range.

* added some more tests.

* fixing so duplicating query works.

* added some more tests without marbles.

* small refactoring to share code between runRequest and alerting query runner.

Co-authored-by: Marcus Andersson <marcus.andersson@grafana.com>
Co-authored-by: Hugo Häggmark <hugo.haggmark@grafana.com>

public/app/types/unified-alerting-dto.ts

@@ -95,7 +95,7 @@ export enum GrafanaAlertState {
 export interface GrafanaQuery {
   refId: string;
   queryType: string;
-  relativeTimeRange: RelativeTimeRange;
+  relativeTimeRange?: RelativeTimeRange;
   datasourceUid: string;
   model: DataQuery;
 }