fixed issue #2

frontend/lib/pages/leaderboard.dart

@@ -3,12 +3,29 @@ import 'package:frontend/provider/quote_provider.dart';
 import 'package:frontend/values/constants.dart';
 import 'package:provider/provider.dart';
 
-class LeaderboardPage extends StatelessWidget {
+class LeaderboardPage extends StatefulWidget {
   const LeaderboardPage({super.key});
 
+  @override
+  State<LeaderboardPage> createState() => _LeaderboardPageState();
+}
+
+class _LeaderboardPageState extends State<LeaderboardPage> {
+  @override
+  void initState() {
+    super.initState();
+
+    // reset filter once, only when page is created
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      final provider = context.read<QuoteProvider>();
+      provider.resetLeaderboardFilter();
+    });
+  }
+  
   @override
   Widget build(BuildContext context) {
     final provider = context.watch<QuoteProvider>();
+    
     return Center(
       child: Column(
         children: [
@@ -21,6 +38,7 @@ class LeaderboardPage extends StatelessWidget {
                     Card(
                       color: provider.getLeaderboardEntryBgColor(context, index),
                       child: ListTile(
+                        onTap: () { provider.showListPageFilteredByAuthor(context, index); },
                         contentPadding: EdgeInsets.symmetric(
                           vertical: 0,
                           horizontal: Constants.edgeInset,