Improve error message when entities overlap longitudinally

src/Storyboard/Utils/EntityUtils.cpp

@@ -80,7 +80,7 @@ units::length::meter_t EntityUtils::CalculateLongitudinalFreeSpaceDistance(
         (master_max_x > entity_min_x && master_max_x < entity_max_x))
     {
         std::cout << "Warning: in CalculateLongitudinalFreeSpaceDistance Entity \"" << master_entity.GetName()
-                  << "\" and \"" << reference_entity.GetName() << "\" are overlapping in the x-axis" << std::endl;
+                  << "\" and \"" << reference_entity.GetName() << "\" are overlapping longitudinally " << std::endl;
         return units::length::meter_t{0.0};
     }