fix: flexible int parsing in PlexRole

lib/models/plex_role.dart

@@ -2,14 +2,22 @@ import 'package:json_annotation/json_annotation.dart';
 
 part 'plex_role.g.dart';
 
+int? _flexibleInt(Object? v) => switch (v) {
+      num n => n.toInt(),
+      String s => int.tryParse(s),
+      _ => null,
+    };
+
 @JsonSerializable()
 class PlexRole {
+  @JsonKey(fromJson: _flexibleInt)
   final int? id;
   final String? filter;
   final String tag;
   final String? tagKey;
   final String? role;
   final String? thumb;
+  @JsonKey(fromJson: _flexibleInt)
   final int? count;
 
   PlexRole({this.id, this.filter, required this.tag, this.tagKey, this.role, this.thumb, this.count});

lib/models/plex_role.g.dart

@@ -7,13 +7,13 @@ part of 'plex_role.dart';
 // **************************************************************************
 
 PlexRole _$PlexRoleFromJson(Map<String, dynamic> json) => PlexRole(
-  id: (json['id'] as num?)?.toInt(),
+  id: _flexibleInt(json['id']),
   filter: json['filter'] as String?,
   tag: json['tag'] as String,
   tagKey: json['tagKey'] as String?,
   role: json['role'] as String?,
   thumb: json['thumb'] as String?,
-  count: (json['count'] as num?)?.toInt(),
+  count: _flexibleInt(json['count']),
 );
 
 Map<String, dynamic> _$PlexRoleToJson(PlexRole instance) => <String, dynamic>{