Initial Das OS 0.1.0: Void Linux live ISO with Xfce

- xbps-src templates: das-theme (adw-gtk3-based GTK themes, generated
  xfwm4 frames, wallpapers, logo), das-settings (Xfce, panel, LightDM
  defaults in /etc/xdg/das), adw-gtk3 and font-jetbrains-mono
- void-mklive profile in live/: packages, runit services, rootfs overlay,
  Ukrainian locale, live user with autologin
- Void builder container, build scripts, QEMU runner and Makefile
- Bilingual README with screenshots

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

srcpkgs/das-settings/files/xfconf/xsettings.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<channel name="xsettings" version="1.0">
+  <property name="Net" type="empty">
+    <property name="ThemeName" type="string" value="DasOS"/>
+    <property name="IconThemeName" type="string" value="Papirus"/>
+  </property>
+  <property name="Xft" type="empty">
+    <property name="Antialias" type="int" value="1"/>
+    <property name="Hinting" type="int" value="1"/>
+    <property name="HintStyle" type="string" value="hintslight"/>
+    <property name="RGBA" type="string" value="rgb"/>
+  </property>
+  <property name="Gtk" type="empty">
+    <property name="FontName" type="string" value="Inter 10"/>
+    <property name="MonospaceFontName" type="string" value="JetBrains Mono 10"/>
+    <property name="CursorThemeName" type="string" value="Adwaita"/>
+    <property name="CursorThemeSize" type="int" value="24"/>
+    <property name="DecorationLayout" type="string" value="menu:minimize,maximize,close"/>
+  </property>
+</channel>