feat(js/array-element-newline): options multiline and consistent combination

Description

The rule array-element-newline doesn't allow combining the "consistent" and { "multiline": true } options.

The { "multiline": true } is excellent for readability.

But with singleline values, it entirely forbid having newlines between elements. Yet it's also quite helpful for readability with long values or some nested arrays.

With { "multiline": true }, this is invalid.

const urls = [
    "https://www.example.com/path/to/something",
    "https://www.example.com/path/to/something/else",
    "https://www.example.com/path/to/an/other/thing",
];

const matrix = [
    [0, 1, 2],
    [3, 4, 5],
    [6, 7, 8],
];

Linked Issues

None here, but I opened this very issue on the eslint github back in 2020 before the split occured. At the time, stylistic rules were frozen. https://github.com/eslint/eslint/issues/13818

Additional context

This change was made to be entirely backward compatible for ease. It was just a matter of adding the possibility to put a boolean property named "consistent" to the option object.

{ "consistent": true, "multiline": true } has the meaning "if there is a multiline element, then the rule is "always" else the rule is "consistent"".

eslint-stylistic / eslint-stylistic