Fix isOperatorRegistered

[MaanavKhaitan]

Motivation

• isOperatorRegistered() was using the operator ID to determine if an operator is registered
• This was an issue because after an operator de-registers from an AVS, their operator info and ID is not removed from the registry coordinator so isOperatorRegistered() was still returning true

Solution

• Fixes isOperatorRegistered() so it uses operator status instead of operator ID to determine if an operator is registered

Testing

Tested this with the CLI in incredible-squaring-avs and verified that we're getting the correct value now for registeredWithAvs.

[samlaf]

Thank you sir, insta approve!
@shrimalmadhur the badge github action is still failing, prob because maanav is outside our org?

[shrimalmadhur]

Thank you sir, insta approve! @shrimalmadhur the badge github action is still failing, prob because maanav is outside our org?

yea. I have made it optional so as long as unit test passes, we are good to merge. haven't found a good way to make it work with folks outside the org