feat: 增加发送验证码的样式，调试设备限制数量

lib/app/modules/kr_delete_account/controllers/kr_delete_account_controller.dart

@@ -6,6 +6,7 @@ import 'package:kaer_with_panels/app/model/enum/kr_request_type.dart';
 import 'package:kaer_with_panels/app/services/api_service/kr_auth_api.dart';
 import 'package:kaer_with_panels/app/utils/kr_common_util.dart';
 import 'package:kaer_with_panels/app/services/kr_subscribe_service.dart';
+import 'package:kaer_with_panels/app/widgets/dialogs/hi_dialog.dart';
 
 import '../../../localization/app_translations.dart';
 
@@ -65,6 +66,11 @@ class KRDeleteAccountController extends GetxController {
         KRCommonUtil.kr_showToast(error.msg);
       },
       (success) {
+        HIDialog.show(
+          title: '*重要提示',
+          message:
+          '验证邮件已发送至邮箱，如无法找到，请检查垃圾邮件箱或营销邮件箱。',
+        );
         kr_canSendCode.value = false;
         kr_countdown.value = 60;