feat: upower rank page

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/models/upower_rank/up_info.dart

@@ -0,0 +1,35 @@
+class UpInfo {
+  int? mid;
+  String? nickname;
+  String? avatar;
+  int? type;
+  String? title;
+  int? upowerState;
+
+  UpInfo({
+    this.mid,
+    this.nickname,
+    this.avatar,
+    this.type,
+    this.title,
+    this.upowerState,
+  });
+
+  factory UpInfo.fromJson(Map<String, dynamic> json) => UpInfo(
+        mid: json['mid'] as int?,
+        nickname: json['nickname'] as String?,
+        avatar: json['avatar'] as String?,
+        type: json['type'] as int?,
+        title: json['title'] as String?,
+        upowerState: json['upower_state'] as int?,
+      );
+
+  Map<String, dynamic> toJson() => {
+        'mid': mid,
+        'nickname': nickname,
+        'avatar': avatar,
+        'type': type,
+        'title': title,
+        'upower_state': upowerState,
+      };
+}