Change block explorer from etherscan to polygonscan on Operator field

[manumonti]

When accessing to staker page for some staking provider addres, for example:

https://tacoscan.com/?staker=0x5270ba998643be976c106298c08c46947c5bf774

We get a list of addresses related to this staking provider and links to Etherscan. But the Operator address link should redirect to Polygonscan instead of Etherscan, since all the operator activity happens on Polygon.