dbus改为同步调用

Log: 桌面鼠标右键菜单进入的显示设置与直接打开控制中心的不一样
Bug: https://pms.uniontech.com/zentao/bug-view-41344.html
Change-Id: I6835fd4b5decea524821932ef1f1417c9fe6ab45
Reviewed-on: http://gerrit.uniontech.com/c/dde-control-center/+/1473
Reviewed-by: niecheng <niecheng@uniontech.com>
Reviewed-by: <mailman@uniontech.com>
Reviewed-by: wangwei <wangwei@uniontech.com>
Tested-by: <mailman@uniontech.com>