feat: at user

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

lib/pages/dynamics_mention/controller.dart

@@ -0,0 +1,31 @@
+import 'package:PiliPlus/http/dynamics.dart';
+import 'package:PiliPlus/http/loading_state.dart';
+import 'package:PiliPlus/models_new/dynamic/dyn_mention/group.dart';
+import 'package:PiliPlus/pages/common/common_list_controller.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+
+class DynMentionController
+    extends CommonListController<List<MentionGroup>?, MentionGroup> {
+  final focusNode = FocusNode();
+  final controller = TextEditingController();
+
+  final RxBool enableClear = false.obs;
+
+  @override
+  void onInit() {
+    super.onInit();
+    queryData();
+  }
+
+  @override
+  Future<LoadingState<List<MentionGroup>?>> customGetData() =>
+      DynamicsHttp.dynMention(keyword: controller.text);
+
+  @override
+  void onClose() {
+    focusNode.dispose();
+    controller.dispose();
+    super.onClose();
+  }
+}