[代码优化](v2.5): 代码优化

close https://github.com/elunez/eladmin/issues/440

eladmin-system/src/main/resources/template/generator/front/index.ftl

@@ -120,7 +120,6 @@ import crudOperation from '@crud/CRUD.operation'
 import udOperation from '@crud/UD.operation'
 import pagination from '@crud/Pagination'
 
-
 const defaultForm = { <#if columns??><#list columns as column>${column.changeColumnName}: null<#if column_has_next>, </#if></#list></#if> }
 export default {
   name: '${className}',