add pipewire.desktop autostart and configure SDDM Wayland compositor

Place pipewire.desktop in root-overlay /etc/skel/.config/autostart/
so PipeWire starts via XDG autostart on login via the patched
artix-pipewire-launcher (now supports dinit in our pipewire fork).

Configure SDDM [Wayland] section with kwin_wayland compositor
command for a Wayland-native greeter display.

Includes:
- buildiso: antergos theme symlinked as artix for prepare_grub
- profile.yaml: dinit-user-spawn -> userspawn-dinit, added
  dbus-dinit-user, pipewire-pulse-dinit, userspawn-dinit to livefs,
  antergos-lsb-release
- services-artix.conf: dinit-user-spawn -> userspawn
- basestrap.conf: xlibre-xserver for online install
- pacman.conf: IgnorePkg xorg-server to avoid conflict with xlibre
- sddm.conf: Wayland compositor command
- common.yaml: cleanup (dedup lsb-release, vi->ex-vi-compat,
  remove artix-grub-theme, jack2, noto-fonts-emoji)
- iso-x86_64.conf: IgnorePkg xorg-server for ISO build

iso-profiles/antergos/live-overlay/etc/calamares-online/modules/basestrap.conf

@@ -34,3 +34,4 @@ operations:
     - antergos-next-keyring
     - antergos-release
     - antergos-grub-theme
+    - xlibre-xserver

iso-profiles/antergos/live-overlay/etc/calamares/modules/services-artix.conf

@@ -22,5 +22,5 @@ services:
     action: "enable"
   - name: "syslog-ng"
     action: "enable"
-  - name: "dinit-user-spawn"
+  - name: "userspawn"
     action: "enable"

iso-profiles/antergos/profile.yaml

@@ -21,6 +21,7 @@ live-session:
 rootfs:
   packages:
     - antergos-release
+    - antergos-lsb-release
     - qt6-multimedia-ffmpeg
     - falkon
     - vlc
@@ -45,7 +46,7 @@ rootfs:
       - pipewire-dinit
       - pipewire-pulse-dinit
       - wireplumber-dinit
-      - dinit-user-spawn
+      - userspawn-dinit
       - syslog-ng-dinit
       - sddm-dinit
       - networkmanager-dinit
@@ -118,8 +119,12 @@ livefs:
       - sddm-dinit
       - syslog-ng-dinit
       - dbus-dinit
+      - dbus-dinit-user
       - pipewire-dinit
+      - pipewire-pulse-dinit
       - wireplumber-dinit
+      - userspawn-dinit
+      - elogind-dinit
     openrc:
       - antergos-live-openrc
     runit:

iso-profiles/antergos/root-overlay/etc/pacman.conf

@@ -8,6 +8,7 @@
 #
 [options]
 HoldPkg     = pacman glibc
+IgnorePkg   = xorg-server xorg-server-common xorg-server-libs
 Architecture = auto
 CheckSpace
 ParallelDownloads = 5

iso-profiles/antergos/root-overlay/etc/sddm.conf

@@ -17,6 +17,7 @@ RememberLastUser=true
 ReuseSession=false
 
 [Wayland]
+CompositorCommand=kwin_wayland --drm --no-global-shortcuts --no-lockscreen --inputmethod plasma-keyboard --locale1
 EnableHiDPI=false
 SessionCommand=/usr/share/sddm/scripts/wayland-session
 SessionDir=/usr/share/wayland-sessions

iso-profiles/antergos/root-overlay/etc/skel/.config/autostart/pipewire.desktop

@@ -0,0 +1,8 @@
+[Desktop Entry]
+Version=1.0
+Name=PipeWire Media System
+Comment=Start the PipeWire Media System
+Exec=/usr/bin/artix-pipewire-launcher restart
+Terminal=false
+Type=Application
+StartupNotify=false