refactor(系统设置): 优化重命名按钮文案

--bug=1035490 --user=王孝刚 【系统设置】系统-用户组重命名确定按钮文案和提交成功提示与交互不符
https://www.tapd.cn/55049933/s/1470748

frontend/src/views/setting/system/usergroup/locale/en-US.ts

@@ -29,7 +29,7 @@ export default {
       revoke: 'revoke',
       pleaseSelectUser: 'Please select user',
       pleaseInputUserGroupName: 'Please input user group name,and not equal to system user group name',
-      userGroupNameIsExist: `Usergroup {name} is exist`,
+      userGroupNameIsExist: `{name} is exist, Please change it`,
       pleaseSelectAuthScope: 'Please select auth scope',
       userGroupNameIsNotNone: 'User group name is not none',
       authScopeIsNotNone: 'Auth scope is not none',

frontend/src/views/setting/system/usergroup/locale/zh-CN.ts

@@ -34,7 +34,7 @@ export default {
       authScopeIsNotNone: '权限范围不能为空',
       userIsNotNone: '成员不能为空',
       pleaseInputUserGroupName: '请输入用户组名称，且不与其他用户组名称重复',
-      userGroupNameIsExist: `用户组{name}已存在`,
+      userGroupNameIsExist: `已有 {name} ，请更改`,
       pleaseSelectAuthScope: '请选择用户组所属的权限范围',
       searchPlaceholder: '通过ID/名称搜索',
       SYSTEM: '系统',