refactor(announcement): 使用绝对路径导入常量模块

src/views/announcement/index.js

@@ -11,7 +11,7 @@ import {
     parseRolesMask,
     getVisibleRolesText,
     getVisibleRolesTextArray
-} from './constants';
+} from '@/views/announcement/constants';
 
 /**
  * 角色类型枚举