Ladybird+LibWebView: Add an Inspector action to clone a DOM node

Author: https://github.com/trflynn89
Commit: 7e974f530d
Pull-request: https://github.com/SerenityOS/serenity/pull/22198
Reviewed-by: https://github.com/awesomekling

Userland/Libraries/LibWebView/InspectorClient.h

@@ -31,6 +31,7 @@ public:
     void context_menu_screenshot_dom_node();
     void context_menu_create_child_element();
     void context_menu_create_child_text_node();
+    void context_menu_clone_dom_node();
     void context_menu_remove_dom_node();
     void context_menu_add_dom_node_attribute();
     void context_menu_remove_dom_node_attribute();