[ADF-3677] Add highlight configuration to SearchQueryBuilder (#4358)

* [ADF-3677] Add highlight configuration to SearchQueryBuilder

* highlight property in search

* Update files.component.ts

* remove comma

* highlight missspell

* fix schhema json highilight

* fix test

* fix lint

* fix lint

* fix lint

* fix search sorting tests

* fix search sorting

* fix lint

* remove useless test

* check for null nodes

* remove duplicated test

* lint

* fix sorting tests

* remove test not search component related

lib/content-services/search/search-query-builder.service.ts

@@ -23,7 +23,8 @@ import {
     RequestFacetFields,
     RequestFacetField,
     RequestSortDefinitionInner,
-    ResultSetPaging
+    ResultSetPaging,
+    RequestHighlight
 } from '@alfresco/js-api';
 import { SearchCategory } from './search-category.interface';
 import { FilterQuery } from './filter-query.interface';
@@ -227,7 +228,8 @@ export class SearchQueryBuilderService {
                 facetQueries: this.facetQueries,
                 facetIntervals: this.facetIntervals,
                 facetFields: this.facetFields,
-                sort: this.sort
+                sort: this.sort,
+                highlight: this.highlight
             };
 
             result['facetFormat'] = 'V2';
@@ -296,6 +298,10 @@ export class SearchQueryBuilderService {
         return false;
     }
 
+    get hasFacetHighlight(): boolean {
+        return this.config && this.config.highlight ? true : false;
+    }
+
     protected get sort(): RequestSortDefinitionInner[] {
         return this.sorting.map((def) => {
             return new RequestSortDefinitionInner({
@@ -339,6 +345,10 @@ export class SearchQueryBuilderService {
         return null;
     }
 
+    protected get highlight(): RequestHighlight {
+        return this.hasFacetHighlight ? this.config.highlight : null;
+    }
+
     protected getFinalQuery(): string {
         let query = '';