Laravel mix configuration using vuetify

webpack.mix.js

const mix = require('laravel-mix');
const path = require("path");
const MiniCssExtractPlugin  = require('mini-css-extract-plugin');

const _root = path.resolve(__dirname, ".");
const rootPath = function(args) {
    args = Array.prototype.slice.call(arguments, 0);
    return path.join.apply(path, [_root].concat(args));
};

mix.setPublicPath('public');
mix.webpackConfig({
    resolve: {
        alias: {
            '@': rootPath(),
        }
    },
    output: {
        chunkFilename: 'dist/[name].js',
    },
    module: {
        rules: [
            {
                test: /\.sass$/,
                use: [
                    MiniCssExtractPlugin.loader,
                    { loader: 'css-loader', options: { sourceMap: false } },
                    {
                        loader: 'sass-loader',
                        options: {
                            sourceMap: false,
                            implementation: require("sass"),
                            prependData: "@import '@/resources/scss/variables.scss'",
                            sassOptions:  {
                                fiber: require('fibers'),
                            }
                        }
                    }
                ]
            },
        ]
    },
    plugins: [
        new MiniCssExtractPlugin({
            filename: "[name].css",
            chunkFilename: "[name].css",
            ignoreOrder: false
        }),
    ],
    externals: {
        "vue": "Vue",
    }
});

if (mix.inProduction()) {
    mix.copy('node_modules/vue/dist/vue.min.js', 'public/dist/vue.js');
} else {
    mix.copy('node_modules/vue/dist/vue.js', 'public/dist/vue.js');
}

mix.js('resources/js/vuetify.js', 'public/dist');
mix.js('resources/js/auth.js', 'public/dist');
mix.js('resources/js/app.js', 'public/dist');