chore: split dwl to flake packages

chore: update dwl

feat: make sure to redirect dwl stdout

fix: firefox not using idle inhibit

feat: make wlr portal working for screenshare

chore: update kanshi options to new ones

feat: update dwl

feat: add kanshi to manage monitors on wayland

fix: properly import environment for dwl and qtile

feat: add swayidle service

feat: add dwl to HM config