Fix and run eslint.

[gianfra-t]

#63

This PR does not include any config changes since the scripts lint and lint:fix are working for me. I just run fix.

[ebma]

Please don't forget to add reviewers @gianfra-t 😅

[ebma]

Actually, I tested this locally and I also get an error

$ yarn lint
Invalid option '--ignore-path' - perhaps you meant '--ignore-pattern'?
You're using eslint.config.js, some command line flags are no longer available. Please see https://eslint.org/docs/latest/use/command-line-interface for details.

I did some digging and I think we need to migrate to a new format. It's probably easiest if we just start with the configuration from scratch using the steps here. I already tested it and got 3126 problems (3126 errors, 0 warnings). Maybe we should ignore some of the automatically generated files from eslint as it doesn't really make sense to fix warnings on them as they would need to be fixed again and again.

Can you please add the migration to the new eslint to this PR @gianfra-t?

[gianfra-t]

Okay, I will change it. Strange that I don't get an error 🤔 nor a warning.

[gianfra-t]

@pendulum-chain/devs any idea why we had disabled the unused variables rule? I enabled it in the new config here. But I could be missing something.