🐛 Fixed logs showing an error when sending an email with no feature image
🐛 Fixed logs showing an error when sending an email with no feature image

no issue

- we were attempting to read an image file to determine it's dimensions when no feature image was set. This wasn't a fatal error as it was handled gracefully and had no ill consequences but it was adding confusing errors to the logs

ErisDS/Ghost,TryGhost/Ghost,e10/Ghost,ErisDS/Ghost,TryGhost/Ghost,janvt/Ghost,e10/Ghost,ErisDS/Ghost,TryGhost/Ghost,janvt/Ghost