fixed several configs and missing packages, added plymouth

configs/skel/.config/labwc/environment

@@ -1,5 +1,8 @@
 # labwc-Umgebung – fluffy-pancake (Noctalia-Zweig)
 # Wird von labwc beim Start eingelesen (~/.config/labwc/environment).
+# Sprache bewusst hier (nicht nur Installer-locale.conf): gilt
+# deterministisch fuer jede Session.
+LANG=de_DE.UTF-8
 XKB_DEFAULT_LAYOUT=de
 XKB_DEFAULT_VARIANT=nodeadkeys
 QT_QPA_PLATFORM=wayland

configs/skel/.config/labwc/rc.xml

@@ -38,6 +38,35 @@
     <keybind key="W-l">
       <action name="Execute" command="noctalia msg session lock" />
     </keybind>
+    <!-- Medien-Tasten (Laptop): PipeWire-Mixer, Helligkeit, Player.
+         Noctalia-OSDs reagieren von selbst auf die Aenderungen. -->
+    <keybind key="XF86AudioRaiseVolume">
+      <action name="Execute" command="wpctl set-volume @DEFAULT_AUDIO_SINK@ 5%+" />
+    </keybind>
+    <keybind key="XF86AudioLowerVolume">
+      <action name="Execute" command="wpctl set-volume @DEFAULT_AUDIO_SINK@ 5%-" />
+    </keybind>
+    <keybind key="XF86AudioMute">
+      <action name="Execute" command="wpctl set-mute @DEFAULT_AUDIO_SINK@ toggle" />
+    </keybind>
+    <keybind key="XF86AudioMicMute">
+      <action name="Execute" command="wpctl set-mute @DEFAULT_AUDIO_SOURCE@ toggle" />
+    </keybind>
+    <keybind key="XF86MonBrightnessUp">
+      <action name="Execute" command="brightnessctl set 5%+" />
+    </keybind>
+    <keybind key="XF86MonBrightnessDown">
+      <action name="Execute" command="brightnessctl set 5%-" />
+    </keybind>
+    <keybind key="XF86AudioPlay">
+      <action name="Execute" command="playerctl play-pause" />
+    </keybind>
+    <keybind key="XF86AudioNext">
+      <action name="Execute" command="playerctl next" />
+    </keybind>
+    <keybind key="XF86AudioPrev">
+      <action name="Execute" command="playerctl previous" />
+    </keybind>
     <!-- Fenster schliessen -->
     <keybind key="A-F4">
       <action name="Close" />