Tonight, I brought her out to the two chickens again cleaning the dog cage. Was a lot better. She wasn't attacking the two chickens as bad. They did give respect and kept away from her (Spots).
Sounds like normal pecking order stuff to me. She was just making sure there was NO Question as to who was boss! (Top SpotI have to explain she was ruthless with the other chickens, scared them as they kept running from her as well going into the dog temp coop and chasing them relentlessly.

And being a lot better the next day sounds normal too. Since the other girls gave some respect and kept their distance, she knew she was holding rank.
If you do it again tomorrow, it will probably be even better.
I do agree with you, I'd wait until she's healed before putting her back full time.
I know it can be a bit unsettling to see them bicker and squabble. The chasing about is quite normal. Giving a few hard pecks and even a tussle can be normal. I just monitor things like that. If no one is getting hurt then I let them work it out.