MainWindow should not hide when popup opens and the focus is still
on dock even if HideMode is AlwaysHide. Let popup block hiding of
mainwindow.
Log: fix mainwindow hide when popup opens
Issue: https://github.com/linuxdeepin/developer-center/issues/4970
some unrecongnized app like electron app will unable to start when next click.
and custom desktopfile will not be supported by new applicationmanager1
log: not dock unrecongnized application
1. taskmanager used to identify which entry should map to window
in x11 environmrnt, listen to xevent in anohter thread, and handle those event
when window create, destory, changed. use some way to identify which entry(desktopfile)
should mapped to changed window.
in wayland, connected plsamawindow signal(window created destoried.
2. use taskmanager instead of dbus in old dock code
log: as title
