refactor: modularize the configuration

feat: some updates

too lazy to comment all of them :(

refactor: split qtile configuration

feat: all services that should not start on Gnome do not start now

feat: start some services only with qtile

feat: change dunst monitor

In the future, when more hosts are used, this has to be
set independently. Currently it will be set on every
host to 2. That is wrong.

feat: add initial configurations