feat: replace noctalia-shell with dma-shell

Signed-off-by: Ryan Yin <xiaoyin_c@qq.com>

home/linux/gui/base/dma-shell/default.nix

@@ -0,0 +1,50 @@
+{
+  config,
+  pkgs,
+  wallpapers,
+  dms,
+  ...
+}:
+{
+  imports = [
+    dms.homeModules.dankMaterialShell.default
+  ];
+
+  home.packages = [
+    pkgs.qt6Packages.qt6ct # for icon theme
+  ];
+
+  home.file."Pictures/Wallpapers".source = wallpapers;
+
+  xdg.configFile =
+    let
+      mkSymlink = config.lib.file.mkOutOfStoreSymlink;
+      confPath = "${config.home.homeDirectory}/nix-config/home/linux/gui/base/dma-shell";
+    in
+    {
+      "DankMaterialShell/settings.json".source = mkSymlink "${confPath}/settings.json";
+      "qt6ct/qt6ct.conf".source = mkSymlink "${confPath}/qt6ct.conf";
+    };
+
+  systemd.user.services.dms.Service.Environment = [
+    "QT_QPA_PLATFORM=wayland"
+    "QT_QPA_PLATFORMTHEME=qt6ct"
+  ];
+
+  programs.dankMaterialShell = {
+    enable = true;
+
+    systemd = {
+      enable = true; # Systemd service for auto-start
+      restartIfChanged = true; # Auto-restart dms.service when dankMaterialShell changes
+    };
+
+    # Core features
+    enableSystemMonitoring = true; # System monitoring widgets (dgop)
+    enableClipboard = true; # Clipboard history manager
+    enableVPN = true; # VPN management widget
+    enableDynamicTheming = true; # Wallpaper-based theming (matugen)
+    enableAudioWavelength = true; # Audio visualizer (cava)
+    enableCalendarEvents = true; # Calendar integration (khal)
+  };
+}