Small fix, don't remember what... Let's hope it still works.
Made a little baddie. editCustomer now updates the customer with the corresponding customerId instead of randomness or something.
Type. fisrt_name => first_name
Holy shit, editCustomer should now finally be correct...
getCustomer now returns a Customer object instead of an ArrayList with the object. Why the fuck would there be a list with one object in it? Ærrunno
Fleshed out IngredientManagement/MainManagement with getIngredient(), deleteIngredient() and editIngredient().