The actual amount of milk she is having (5 x4 oz) is 20oz and this is 1 pt of milk which is not really too much and is what is recommended at this age though that does include any other equivalent dairy products and milk used in cereal and cooking. I think the problem is though that she prefers it to solids and that she is having small amounts of milk often - maybe 2-3 slightly larger feeds of milk would be better.
Maybe start with the lunchtime milk - try offering juice or water with her lunch. When she has finished the food - even if she hasn't eaten much you could try ofering the bottle watered down - half water and half milk so she is only taking 2oz instead of 4 or maybe start with 3oz milk and 1oz water. After a few days reduce the milk more and see if that has any effect on her appetite in the evening. Over time you can cut out the milk at lunchtime completely.
One quite good reason not to give milk at the same time as at least one of their meals is that milk reduces the take-up of iron so if you eat meat with milk, iron up take is reduced and many toddlers have a problem getting enough iron as it is.
You do need to make sure she has plenty of yoghurt and cheese and that her other bottles of milk (in the morning and evening) are a bit more -say 5oz instead of 4oz as. I think if she has less or even no milk at her meals she may eat more solids. Don't cut her overall milk too much though as she is having the recommended amount, though many babies and toddlers get by fine on 16-20oz of milk as long as they eat a variety of other foods with calcium in.
I'd be aiming for a largish bottle of milk when she wakes up, breakfast which may be cereal (hence includes milk) but no milk to drink, lunch without milk, maybe a small drink of milk with an afternoon snack, no milk with her tea and a largish bottle of milk at night before bed.
I would concentrate on reducing the milk
amounts first before changing the milk type you give her or changing from bottle to cup. Small changes slowly are more likely to succeed with less of a struggle. Once she is drinking less milk in fewer feeds try changing to a cup or changing the milk but not both until she is happy with that and so on.