dock: only show on rightmost screen

shell/shell.qml

@@ -17,6 +17,15 @@ ShellRoot {
             id: scope
             required property var modelData
 
+            readonly property bool _isRightmost: {
+                let maxX = -Infinity;
+                for (let i = 0; i < Quickshell.screens.length; i++) {
+                    if (Quickshell.screens[i].x > maxX)
+                        maxX = Quickshell.screens[i].x;
+                }
+                return scope.modelData.x >= maxX;
+            }
+
             Bar {
                 screen: scope.modelData
             }
@@ -61,14 +70,14 @@ ShellRoot {
             }
 
             LazyLoader {
-                active: Modules.dock.enable
+                active: Modules.dock.enable && scope._isRightmost
                 Dock.AppletDock {
                     screen: scope.modelData
                 }
             }
 
             LazyLoader {
-                active: Modules.dock.enable
+                active: Modules.dock.enable && scope._isRightmost
                 Dock.DockEdgeTrigger {
                     screen: scope.modelData
                 }