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/Popouts/DWLLayoutPopout.qml

@@ -10,6 +10,10 @@ DankPopout {
 
     property var triggerScreen: null
 
+    // mango shares dwl's layout model; route to the right service.
+    readonly property bool isDwlLike: CompositorService.isDwl || CompositorService.isMango
+    readonly property var dwlSvc: CompositorService.isMango ? MangoService : DwlService
+
     function setTriggerPosition(x, y, width, section, screen, barPosition, barThickness, barSpacing, barConfig) {
         triggerX = x;
         triggerY = y;
@@ -33,8 +37,8 @@ DankPopout {
     onScreenChanged: updateOutputState()
 
     function updateOutputState() {
-        if (screen && DwlService.dwlAvailable) {
-            outputState = DwlService.getOutputState(screen.name);
+        if (screen && root.dwlSvc.available) {
+            outputState = root.dwlSvc.getOutputState(screen.name);
         } else {
             outputState = null;
         }
@@ -215,7 +219,7 @@ DankPopout {
                     spacing: Theme.spacingS
 
                     Repeater {
-                        model: DwlService.layouts
+                        model: root.dwlSvc.layouts
 
                         delegate: Rectangle {
                             required property string modelData
@@ -269,11 +273,11 @@ DankPopout {
                                     if (!root.triggerScreen) {
                                         return;
                                     }
-                                    if (!DwlService.dwlAvailable) {
+                                    if (!root.dwlSvc.available) {
                                         return;
                                     }
 
-                                    DwlService.setLayout(root.triggerScreen.name, index);
+                                    root.dwlSvc.setLayout(root.triggerScreen.name, index);
                                     root.close();
                                 }
                             }