feat(Hyprland): Introduce Lua support for Hyprland configurations

- Note: We do not convert your existing conf configs to lua. This update only reflects DMS defaults state
- Updated README.md to reflect changes
- Updated Keyboard shortcut support

quickshell/Modules/Greetd/assets/dms-hypr.lua

@@ -0,0 +1,8 @@
+-- Minimal Hyprland (Lua) session for greetd — replace _DMS_PATH_ with your DMS checkout.
+-- Copy to `/etc/greetd/dms-hypr.lua` alongside `greet-hyprland.sh`.
+
+hl.env("DMS_RUN_GREETER", "1")
+
+hl.on("hyprland.start", function()
+	hl.exec_cmd('sh -c "qs -p _DMS_PATH_; hyprctl dispatch exit"')
+end)