Search engines to use resultPerPage param if provided

Co-authored-by: Camila Loiola <camilaibs@gmail.com>
Signed-off-by: Emma Indal <emma.indahl@gmail.com>

plugins/search-backend-node/src/engines/LunrSearchEngine.ts

@@ -71,8 +71,9 @@ export class LunrSearchEngine implements SearchEngine {
     term,
     filters,
     types,
+    resultsPerPage,
   }: SearchQuery): ConcreteLunrQuery => {
-    const pageSize = 25;
+    const pageSize = resultsPerPage || 25;
 
     return {
       lunrQueryBuilder: q => {