[gnome] rework package selection and initial theming

editions/gnome

overlays/gnome/etc/environment

overlays/gnome/etc/pamac.conf

overlays/gnome/etc/sddm.conf

overlays/gnome/etc/skel/.config/Kvantum/kvantum.kvconfig

overlays/gnome/etc/skel/.config/dconf/user

...me/etc/skel/.config/manjaro/manjaro-settings-manager.conf

overlays/gnome/etc/skel/.config/mpv/config

overlays/gnome/etc/skel/.config/qt5ct/qt5ct.conf

...ll/extensions/dash-to-panel@jderose9.github.com/README.md

.../extensions/dash-to-panel@jderose9.github.com/Settings.ui

.../extensions/dash-to-panel@jderose9.github.com/appIcons.js

...extensions/dash-to-panel@jderose9.github.com/extension.js

...tensions/dash-to-panel@jderose9.github.com/intellihide.js

...derose9.github.com/locale/cs/LC_MESSAGES/dash-to-panel.mo

...derose9.github.com/locale/de/LC_MESSAGES/dash-to-panel.mo

...derose9.github.com/locale/es/LC_MESSAGES/dash-to-panel.mo

...derose9.github.com/locale/fr/LC_MESSAGES/dash-to-panel.mo

...derose9.github.com/locale/gl/LC_MESSAGES/dash-to-panel.mo

...derose9.github.com/locale/hu/LC_MESSAGES/dash-to-panel.mo