Fix ranking

lib/src/screens/ranking/ranking.dart

@@ -39,11 +39,11 @@ class _RankingPageState extends State<RankingPage> {
                 },
                 itemBuilder: (BuildContext context) => <PopupMenuEntry<int>>[
                       const PopupMenuItem<int>(
-                        value: 3,
+                        value: 4,
                         child: Text('Moves'),
                       ),
                       const PopupMenuItem<int>(
-                        value: 4,
+                        value: 5,
                         child: Text('Points'),
                       ),
                     ]),

lib/src/screens/ranking/resources/ranking_controller.dart

@@ -2,14 +2,13 @@ import 'package:zoysii/src/resources/globals.dart';
 
 int sorter = 4;
 int filter;
-var shownResults = results.where((result) => result[2] >= 0).toList();
+List<List<int>> shownResults = [];
 
 // Sort ranking list
 sortList(int element) {
   int order;
   switch (element) {
-    case 3: order = 1; break;
-    case 4: order = -1; break;
+    case 5: order = -1; break;
     default: order = 1; break;
   }
   shownResults.sort((n0, n1) => order * (n0[element] - n1[element]));
@@ -17,5 +16,6 @@ sortList(int element) {
 
 // Filter ranking list
 filterList(int size) {
-  shownResults = shownResults.where((result) => result[3] == size).toList();
+  shownResults =
+      results.where((result) => result[3] == size && result[2] >= 0).toList();
 }