Fix: The issue of abnormal touch events
I found an issue where all the sliders in plasma-settings cannot slide correctly when using a touch screen, resulting in a lag phenomenon, but there is no such problem when using a mouse. Then I debugged this issue and found that the problem lies in Kirigami. I believe that in the ColumnView::childMouseEventFilter, it should not only judge the item's keepMouseGrab but also its keepTouchGrab.