[General] Housekeeping stuff and a NPE fix

src/Game/Functions.cpp

@@ -508,7 +508,8 @@ namespace Game
 		}
 	}
 
-	void MessageBox(std::string message, std::string title)
+	// this cant be MessageBox because windows.h has a define that converts it to MessageBoxW. which is just stupid
+	void ShowMessageBox(std::string message, std::string title)
 	{
 		if (!Game::CL_IsCgameInitialized())
 		{

src/Game/Functions.hpp

@@ -719,7 +719,7 @@ namespace Game
 
 	void FS_AddLocalizedGameDirectory(const char *path, const char *dir);
 
-	void MessageBox(std::string message, std::string title);
+	void ShowMessageBox(std::string message, std::string title);
 
 	unsigned int R_HashString(const char* string);
 	void R_LoadSunThroughDvars(const char* mapname, sunflare_t* sun);