Enable usage with `@nuxt/eslint`

[felixgabler]

Clear and concise description of the problem

With the latest version of @nuxt/eslint, it would be great if we could also use this config inside the new withNuxt in eslint.config.mjs.

Basically, the idea would be to enable replacing antfu() with sxzz() in this example. When I do this now, it throws the following tsc error:

Argument of type 'FlatESLintConfigItem[]' is not assignable to parameter of type 'ResolvableFlatConfig'.
  Type 'FlatESLintConfigItem[]' is not assignable to type 'FlatConfig<RulesRecord>[]'.
    Type 'FlatESLintConfigItem' is not assignable to type 'FlatConfig<RulesRecord>'.
      Types of property 'languageOptions' are incompatible.

Suggested solution

Make sure languageOptions types are compatible between the two packages. This might just involve updating eslint-define-config (#49) since it is there that the Globals type mismatches.

Alternative

No response

Additional context

No response

Validations

• [X] Follow our Code of Conduct
• [X] Read the Contributing Guide.
• [X] Check that there isn't already an issue that request the same feature to avoid creating a duplicate.