overhauled file viewer with video, audio, text, and SVG support, added media player and line-numbered text views, and fixed search controller recursion

lib/view/pages/files/search/files_search_controller.dart

@@ -33,7 +33,7 @@ class FilesSearchController extends ChangeNotifier {
   /// on a disposed `ChangeNotifier`.
   void _safeNotify() {
     if (_disposed) return;
-    _safeNotify();
+    notifyListeners();
   }
 
   String get query => _query;