Alerting: moving data source uid to query instead of model (#33416)

* initial commit.

* Some more improvements to the expression data source support.

* added tests to verify that time range picker and data source picker only is visible when callbacks is passed to row.

* fixing issue with filter in alerting list.

* minor refactoring.

* removed guarding code, should be fixed in  backend.

* cleaning the data query if we change to a different data source.

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

@@ -92,16 +92,12 @@ export enum GrafanaAlertState {
   KeepLastState = 'KeepLastState',
   OK = 'OK',
 }
-
-export interface GrafanaQueryModel extends DataQuery {
-  datasource: string;
-  datasourceUid: string;
-}
 export interface GrafanaQuery {
   refId: string;
   queryType: string;
   relativeTimeRange: RelativeTimeRange;
-  model: GrafanaQueryModel;
+  datasourceUid: string;
+  model: DataQuery;
 }
 
 export interface PostableGrafanaRuleDefinition {

public/app/types/unified-alerting.ts

@@ -8,7 +8,6 @@ import {
   Labels,
   Annotations,
   RulerRuleGroupDTO,
-  GrafanaQueryModel,
 } from './unified-alerting-dto';
 
 export type Alert = {
@@ -82,7 +81,6 @@ export interface CombinedRule {
   rulerRule?: RulerRuleDTO;
   group: CombinedRuleGroup;
   namespace: CombinedRuleNamespace;
-  queries?: GrafanaQueryModel[];
 }
 
 export interface CombinedRuleGroup {