Dartford should have been out of sight against Cheshunt – long before teenager George Whitefield’s wondergoal on Saturday. That’s the verdict of assistant boss Roland Edge as the Darts collected a first Isthmian Premier home win since August and their first league success in eight games on Saturday. “A good victory, it should have been a lot easier if I’m honest, without being disrespectful to the opposition,” said Edge. “We created great chances, their keeper has made some excellent saves – as well as our keeper did later on – but I thought we created enough chances in the first half to proba…