added leaderboards (without clickthrough to filtered by author - later)

frontend/lib/pages/leaderboard.dart

@@ -1,10 +1,48 @@
 import 'package:flutter/material.dart';
+import 'package:frontend/provider/quote_provider.dart';
+import 'package:frontend/values/constants.dart';
+import 'package:provider/provider.dart';
 
 class LeaderboardPage extends StatelessWidget {
   const LeaderboardPage({super.key});
 
   @override
   Widget build(BuildContext context) {
-    return const Center(child: Text('top 3!'));
+    final provider = context.watch<QuoteProvider>();
+    return Center(
+      child: Column(
+        children: [
+          Expanded(
+            child: ListView.builder(
+              padding: EdgeInsets.all(Constants.edgeInset),
+              itemCount: provider.filteredQuotes.length,
+              itemBuilder: (context, index) {            
+                return
+                    Card(
+                      color: provider.getLeaderboardEntryBgColor(context, index),
+                      child: ListTile(
+                        contentPadding: EdgeInsets.symmetric(
+                          vertical: 0,
+                          horizontal: Constants.edgeInset,
+                        ),
+                        title: Text(provider.sortedAuthorCounts[index].key,
+                          style: TextStyle(
+                            color: provider.getLeaderboardEntryFgColor(context, index)
+                          ),
+                        ),
+                        trailing: Text(provider.sortedAuthorCounts[index].value.toString(),
+                          style: TextStyle(
+                            fontSize: 16,
+                            color: provider.getLeaderboardEntryFgColor(context, index),
+                          ),
+                        ),
+                      ),
+                    );
+              },
+            ),
+          ),
+        ],
+      ),
+    );
   }
 }