release(calamares-branding): v2.0 slideshow + DM selector rework

- bump calamares-branding-antergos-next to 2.0-1: major slideshow redesign
  (Manjaro space animation rework), DM packagechooser switched to netinstall-add
  with inline groups, default netinstall group gains network/audio/falkon so
  every install works regardless of DE, fix pkgdesc (offline installer buried)

- remove dead calamares-branding-antergos-next-minimal package (unused
  everywhere); drop from packages.yaml and README

- bump antergos-i3/sway/hyprland-config to 1.0-2: nerd fonts and icons back in
  depends so the rice actually renders, sources flattened for makepkg

packages/calamares-branding-antergos-next/netinstall.yaml

@@ -93,38 +93,4 @@
     - artools-iso
     - artools-pkg
 
-- name: "SDDM"
-  description: "SDDM display manager"
-  selected: false
-  packages:
-    - sddm
-    - sddm-dinit
-    - pixie-sddm-git
 
-- name: "LightDM"
-  description: "LightDM display manager"
-  selected: false
-  packages:
-    - lightdm
-    - lightdm-dinit
-
-- name: "LXDM"
-  description: "LXDM display manager"
-  selected: false
-  packages:
-    - lxdm
-    - lxdm-dinit
-
-- name: "greetd"
-  description: "greetd display manager"
-  selected: false
-  packages:
-    - greetd
-    - greetd-dinit
-
-- name: "LY"
-  description: "LY display manager"
-  selected: false
-  packages:
-    - ly
-    - ly-dinit