Allow pluralized labels

[hailwood]

Right now we use __($lang_key) to get the translation of the label.
There is no way to use trans_choice to get a pluralized version.

[hailwood]

We should think of a nice way to use a plural form of the label.

First thought is probably adding a new method like

public function labelPlural(int $number): string
{
    $langKey = ...;
    return app('translator')->has($langKey) 
      ? trans_choice($langKey, $number) 
      : $value->value;
}

However if they're using multi choice translation values then then label method is going to return incorrect results (it would return the string with all options).

So perhaps instead we should always use trans_choice and update the label method to include an int $number = 1 parameter so by default it would always return the singular form?

---

As a side note, we should also update the label method so we can pass through replacements.
I wonder if it would be worth adding a protected function defaultLabelReplacements(): array method that would get merged in with the provided replacement array e.g.

protected function defaultLabelReplacements(): array
{
    return match($this) {
      self::SOME_CASE => ['item' => 'vehicle', 'color' => 'unknown'],
      default => [] 
    };
}