Ladybird/Tab: Handle "Dump History" action

Author: https://github.com/moustafaraafat
Commit: 22c3b8be7b
Pull-request: https://github.com/SerenityOS/serenity/pull/16583
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/awesomekling ✅
Reviewed-by: https://github.com/linusg

Ladybird/Tab.cpp

@@ -154,7 +154,10 @@ int Tab::tab_index()
 
 void Tab::debug_request(String const& request, String const& argument)
 {
-    m_view->debug_request(request, argument);
+    if (request == "dump-history")
+        m_history.dump();
+    else
+        m_view->debug_request(request, argument);
 }
 
 void Tab::resizeEvent(QResizeEvent* event)