chore: Name the default export 'arrayFunctions'

[regseb]

When importing the default export, it's recommended to use the same name as the exported variable (cf. import-x/no-rename-default).

The variable name exported by eslint-plugin-array-func is index. With the following configuration:

import arrayFunc from "eslint-plugin-array-func";

export default [
  {
    plugins: {
      "array-func": arrayFunc
    },
    rules: {
      "array-func/from-map": "error"
    }
  }
];

ESLint reports this error:

Caution: index.js has a default export index. This imports index as arrayFunc. Check if you meant to write import index from 'eslint-plugin-array-func' instead

---

With this pull request, we will be able to use the name arrayFunc

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (4933241) to head (06fe540).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #661   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
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  Files            8         8           
  Lines          466       466           
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  Hits           466       466           

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[freaktechnik]

The whole point of default exports/imports is that naming is decoupled... If I wanted to imply naming I'd use a named export. See also the extensive discussion at import-js/eslint-plugin-import#1041

All of that said I think in this case the naming isn't that relevant in the scope of the module itself, so I think this is fine. Just a word of warning about taking that rule as a general recommendation.