[代码完善](v2.5): v2.5 修复字典管理模块新增问题

https://github.com/elunez/eladmin/issues/366

src/views/system/dict/index.vue

@@ -79,7 +79,7 @@ import pagination from '@crud/Pagination'
 import rrOperation from '@crud/RR.operation'
 import udOperation from '@crud/UD.operation'
 
-const defaultForm = { id: null, name: null, description: null }
+const defaultForm = { id: null, name: null, description: null, dictDetails: [] }
 
 export default {
   name: 'Dict',