mainmenu: Workadound QLineEdit's wakups(QTBUG-52021)
mainmenu: Workadound QLineEdit's wakups(QTBUG-52021)

cferr/lxqt-panel,DrTobe/lxqt-panel,Ilya87/lxqt-panel,lxde/lxqt-panel,ThomasVie/lxqt-panel-de,pmattern/lxqt-panel,stefonarch/lxqt-panel,stefonarch/lxqt-panel,DrTobe/lxqt-panel,ThomasVie/lxqt-panel-de,Ilya87/lxqt-panel,pmattern/lxqt-panel,lxde/lxqt-panel,cferr/lxqt-panel,stefonarch/lxqt-panel