Translation of $group label, ignored

[tanthammar]

Translated value $group of the nova media resource is ignored.

Added the key to the json language file.

class Media extends Resource
{
    /**
     * The model the resource corresponds to.
     *
     * @var string
     */
    public static $model = \Spatie\MediaLibrary\Models\Media::class;
    public static $group = 'Attachements';

sv.json
"Attachements": "Bilagor"