[C++] utility/optional/operator_bool page is missing completely

[Sciebur]

Summary

A page for C++ std::optional::operator_bool is missing completely. The source page is https://en.cppreference.com/w/cpp/utility/optional/operator_bool

The link under the section "Member Functions" / "Observers" / "operator_bool has_value" of the std::optional page (https://devdocs.io/cpp/utility/optional) leads to the "Page not found" error (https://devdocs.io/cpp/utility/optional/operator_bool).