Porting KCM modules from QtWidgets to QtQuick/Kirigami for GSOC 2022

I’ve been selected for GSOC this year. My task is to redesign and port the KCMs currently in Qt Widgets to QtQuick/Kirigami Thanks, Nate and David for agreeing to mentor me. Why do this ? Before this, I was already working on KCM for setting gamma in KWin. The MR is in work progress because I decided to add these settings option into kscreen’s KCM instead of creating new one which is pending atm.