Fix #277: Disable action menu if all of its children are disabled

actions/src/main/java/com/itsaky/androidide/actions/internal/DefaultActionsRegistry.kt

@@ -102,14 +102,20 @@ class DefaultActionsRegistry : ActionsRegistry() {
     val item: MenuItem =
       if (action is ActionMenu) {
         val sub = menu.addSubMenu(action.label)
-
+        
+        var shouldBeEnabled = false
         for (subItem in action.children) {
           subItem.prepare(data)
           if (subItem.visible) {
             addActionToMenu(sub, subItem, data)
           }
+          
+          if (action.enabled && subItem.enabled && !shouldBeEnabled) {
+            shouldBeEnabled = true
+          }
         }
-
+        
+        action.enabled = shouldBeEnabled
         sub.item
       } else {
         menu.add(action.label)