style: format project

[skip ci]

src/app/view/admin/admin-visitor/admin-visitor.component.ts

@@ -11,12 +11,12 @@ import {Data} from '../components/common-table/data';
 })
 export class AdminVisitorComponent implements OnInit {
 
-    constructor(private apiService: ApiService, private title: Title) {
-    }
-
     headData: Data<Visitor>[];
     request: RequestObj
 
+    constructor(private apiService: ApiService, private title: Title) {
+    }
+
     ngOnInit(): void {
         this.title.setTitle('小海博客 | 访客信息管理')
         this.request = {