* Add `WUPSConfigAPI_IsMenuOpen()` to detect if the config menu is open.
* Changed function signature and name to match other functions.
* - Renamed function from `WUPSConfigAPI_GetMenuOpen()` to `WUPSConfigAPI_GetMenuOpen()`.
- Changed result type from `BOOL` to `WUPSConfigAPIMenuStatus` enum.
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Co-authored-by: Daniel K. O. (dkosmari) <none@none>