checkSettingSecurity: use script api type check for both cases

note: this means async mainmenu env no longer get the privilege

src/script/lua_api/l_settings.cpp

@@ -31,8 +31,8 @@ static inline int checkSettingSecurity(lua_State* L, const std::string &name)
 {
 #if CHECK_CLIENT_BUILD()
 	// Main menu and pause menu are allowed everything
-	if (ModApiBase::getGuiEngine(L) ||
-			ModApiBase::getScriptApiBase(L)->getType() == ScriptingType::PauseMenu)
+	auto context = ModApiBase::getScriptApiBase(L)->getType();
+	if (context == ScriptingType::MainMenu || context == ScriptingType::PauseMenu)
 		return 0;
 #endif