show the content of empty folders instantly

app/src/main/kotlin/com/simplemobiletools/filemanager/helpers/RootHelpers.kt

@@ -42,7 +42,12 @@ class RootHelpers {
             }
 
             override fun commandCompleted(id: Int, exitcode: Int) {
+                if (files.isEmpty()) {
+                    callback(path, files)
+                } else {
                     getChildrenCount(activity, files, path, callback)
+                }
+
                 super.commandCompleted(id, exitcode)
             }
         }