Fix undefined reference to nativeapi::Menu::Create() on Linux (#22)

* Initial plan

* Implement missing Menu::Create() and related methods for Linux platform

Co-authored-by: lijy91 <3889523+lijy91@users.noreply.github.com>

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: lijy91 <3889523+lijy91@users.noreply.github.com>

Author: Copilot