changed appearance of lists

lib/widgets/search_widgets/search_results_widget.dart

@@ -47,9 +47,10 @@ class _SearchResultsWidgetState extends State<SearchResultsWidget> {
   @override
   Widget build(BuildContext context) {
     if (filteredBookmarks.isNotEmpty) {
-      return ListView.builder(
+      return ListView.separated(
         itemBuilder: bookmarkListItemBuilder,
         itemCount: filteredBookmarks.length,
+        separatorBuilder: (context, index) => SizedBox(height: 10),
       );
     }
     return Center(child: Text(AppLocalizations.of(context)!.tipNoResults));