correction on the properties ponderation

src/app/elasticsearch/services/elasticsearch.service.ts

@@ -257,7 +257,7 @@ export class ElasticsearchService {
         query: regex,
         fields: [
           'metadata-fr.title^7',
-          'data-fr.properties^3',
+          'data-fr.properties^4',
           'metadata-fr.abstract^6',
           'metadata-fr.keyword^5',
           'metadata-fr.lineage^4',