Update configs to KDE 6.6 state

Слиты sgakerru запросил слияние rosa2023.1-6.6 в rosa2023.1

  1. 'kicker' and 'kickerdash' configs

  2. 'taskmanager' config

  3. 'dolphinui.rc' config (with new group by feature backport from master to 6.6)