fix: 评论区无法切换最新

lib/models/video/reply/page.dart

@@ -18,3 +18,60 @@ class ReplyPage {
     acount = json['acount'];
   }
 }
+
+class ReplyCursor {
+  ReplyCursor({
+    this.isBegin,
+    this.prev,
+    this.next,
+    this.isEnd,
+    this.mode,
+    this.modeText,
+    this.allCount,
+    this.supportMode,
+    this.name,
+    this.paginationReply,
+    this.sessionId,
+  });
+
+  bool? isBegin;
+  int? prev;
+  int? next;
+  bool? isEnd;
+  int? mode;
+  String? modeText;
+  int? allCount;
+  List<int>? supportMode;
+  String? name;
+  PaginationReply? paginationReply;
+  String? sessionId;
+
+  ReplyCursor.fromJson(Map<String, dynamic> json) {
+    isBegin = json['is_begin'];
+    prev = json['prev'];
+    next = json['next'];
+    isEnd = json['is_end'];
+    mode = json['mode'];
+    modeText = json['mode_text'];
+    allCount = json['all_count'];
+    supportMode = json['support_mode'].cast<int>();
+    name = json['name'];
+    paginationReply = json['pagination_reply'] != null
+        ? PaginationReply.fromJson(json['pagination_reply'])
+        : null;
+    sessionId = json['session_id'];
+  }
+}
+
+class PaginationReply {
+  PaginationReply({
+    this.nextOffset,
+    this.prevOffset,
+  });
+  String? nextOffset;
+  String? prevOffset;
+  PaginationReply.fromJson(Map<String, dynamic> json) {
+    nextOffset = json['next_offset'];
+    prevOffset = json['prev_offset'];
+  }
+}