add deleted attribute

lib/data/models/score_entry.dart

@@ -2,8 +2,9 @@ class ScoreEntry {
   final int roundNumber;
   final int score;
   final int change;
+  final bool deleted;
 
-  ScoreEntry({required this.score, this.roundNumber = 0, this.change = 0});
+  ScoreEntry({required this.score, this.roundNumber = 0, this.change = 0, this.deleted = false});
 
   @override
   String toString() {
@@ -13,11 +14,13 @@ class ScoreEntry {
   ScoreEntry.fromJson(Map<String, dynamic> json)
     : roundNumber = json['roundNumber'],
       score = json['score'],
-      change = json['change'];
+      change = json['change'],
+      deleted = json['deleted'] ?? false;
 
   Map<String, dynamic> toJson() => {
     'roundNumber': roundNumber,
     'score': score,
     'change': change,
+    'deleted': deleted,
   };
 }