use path helper for news url

frontend/src/app/modules/common/path-helper/path-helper.service.ts

@@ -74,6 +74,10 @@ export class PathHelperService {
     return this.staticBase + '/my/page';
   }
 
+  public newsPath(newsId:string) {
+    return this.staticBase + '/news/' + newsId;
+  }
+
   public loginPath() {
     return this.staticBase + '/login';
   }

frontend/src/app/modules/grids/widgets/news/news.component.ts

@@ -53,7 +53,7 @@ export class WidgetNewsComponent extends AbstractWidgetComponent implements OnIn
   }
 
   public newsPath(news:NewsResource) {
-    return `${this.pathHelper.appBasePath}/news/${news.id}`;
+    return this.pathHelper.newsPath(news.id!);
   }
 
   public newsProjectPath(news:NewsResource) {