更改字体大小，修改边距和间隔

Log: 修改时间页面布局问题
Bug: https://pms.uniontech.com/zentao/bug-view-47571.html
Change-Id: I59c2792f9a623d8994c43f9cab9e8bd5e7149f96
Reviewed-on: http://gerrit.uniontech.com/c/dde-control-center/+/4866
Reviewed-by: niecheng <niecheng@uniontech.com>
Reviewed-by: <mailman@uniontech.com>
Reviewed-by: wangwei <wangwei@uniontech.com>
Tested-by: <mailman@uniontech.com>