All those herbs look to be good. Now you have to ask yourself "" what is my objective ??? "" Does money and cost not matter.??? Do I need my chickens to live many years past their egg laying cycle ???
I agree that GOOD NUTRITION is a good thing, but does not lead to immortality. If you are going to start feeding your chickens ALL those herbs, then I think you may end up with an EMPTY WALLET.
Many of those herbs are for people use. ( catnip obviously not ) so if you have some extra that you no longer need, then turn your chickens on to them.
I keep chickens as pets only, and they live long lives. I let mine free range, as well as feed them Allflock, scratch, bird seeds, All sort of kitchen scraps. ( vegetable, fruit, and breads. NO sweets, chocolate, salt, or rotten etc.)
My latest chicken to go to other side lived 13 years. Others lived 8 years + - .. My current oldest living hen is 9 1/2. I did not go out of my way to feed them a science diet. They did all right. Unfortunately predators shortened the lives of many of my pets. Herbs and science diets would have done them no benefit.
WISHING YOU BEST