List all validating nodes and their addresses through PJS

Example scenario: User comes with address "5G76cR4yeC3n5GEsPATftCn3Fm1VA8xQuoWis3hFKhsBMQgm" and you want to check if the validator is in the list of actually validating nodes.

1. Convert the address with prexif 355 so it starts with g6: https://ss58.org/

   1. Example output: g6Aopn7FenT7aBW2UTfdLc6CAdA8EsX6gsMQQjC4b847hxyrG

2. Go on PolkadotJS with the right WSS (https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Fgen6.app%3A443%2Fnode#/chainstate)

   1. Choose Developer / Chain State / Storage and the following extrinsics (substrateValidatorSet / validators()), then click on +: