feat(mango): first-class MangoWM support across DMS, dankinstaller & UI tools

- Bring up Mango to parity with niri/hyprland via a native JSON-IPC w/Native MangoServic., replaces the legacy dwl/`mmsg` path and recent breaking changes
- Dankinstall: mango supported installer, config/binds templates, and packaging (Arch AUR, Fedora Terra auto-enable, Gentoo GURU)
- Window rules: Go provider + CLI + Settings GUI editor
- Keybinds + config reload on edit (mmsg dispatch reload_config)
- Misc new supported options in DMS settings

quickshell/Modules/DankBar/Widgets/DWLLayout.qml

@@ -12,9 +12,13 @@ BasePill {
 
     signal toggleLayoutPopup
 
-    visible: CompositorService.isDwl && DwlService.dwlAvailable
+    // mango shares dwl's tag/layout model; route to the right service.
+    readonly property bool isDwlLike: CompositorService.isDwl || CompositorService.isMango
+    readonly property var dwlSvc: CompositorService.isMango ? MangoService : DwlService
 
-    property var outputState: parentScreen ? DwlService.getOutputState(parentScreen.name) : null
+    visible: layout.isDwlLike && layout.dwlSvc.available
+
+    property var outputState: parentScreen ? layout.dwlSvc.getOutputState(parentScreen.name) : null
     property string currentLayoutSymbol: outputState?.layoutSymbol || ""
     property int currentLayoutIndex: outputState?.layout || 0
 
@@ -37,9 +41,9 @@ BasePill {
     }
 
     Connections {
-        target: DwlService
+        target: layout.dwlSvc
         function onStateChanged() {
-            outputState = parentScreen ? DwlService.getOutputState(parentScreen.name) : null;
+            outputState = parentScreen ? layout.dwlSvc.getOutputState(parentScreen.name) : null;
         }
     }
 
@@ -97,13 +101,13 @@ BasePill {
     }
 
     onRightClicked: {
-        if (!parentScreen || !DwlService.dwlAvailable || DwlService.layouts.length === 0) {
+        if (!parentScreen || !layout.dwlSvc.available || layout.dwlSvc.layouts.length === 0) {
             return;
         }
 
         const currentIndex = layout.currentLayoutIndex;
-        const nextIndex = (currentIndex + 1) % DwlService.layouts.length;
+        const nextIndex = (currentIndex + 1) % layout.dwlSvc.layouts.length;
 
-        DwlService.setLayout(parentScreen.name, nextIndex);
+        layout.dwlSvc.setLayout(parentScreen.name, nextIndex);
     }
 }