LibWeb/IDB: Keep track of the connection used to start a transaction

Author: https://github.com/stelar7
Commit: fc93ec135e
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/4306
Reviewed-by: https://github.com/ADKaster ✅

Libraries/LibWeb/IndexedDB/IDBDatabase.cpp

@@ -44,6 +44,7 @@ void IDBDatabase::visit_edges(Visitor& visitor)
     Base::visit_edges(visitor);
     visitor.visit(m_object_store_set);
     visitor.visit(m_associated_database);
+    visitor.visit(m_transactions);
 }
 
 void IDBDatabase::set_onabort(WebIDL::CallbackType* event_handler)