webpack.config.js

const path = require('path');
const { VueLoaderPlugin } = require('vue-loader');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");

process.env.NODE_ENV = 'production';

module.exports = {
    mode: 'production',
    entry: {
        desktop: './src/desktop.js',
        config: './src/config.js'
    },
    output: {
        path: path.resolve(__dirname, 'plugin'),
        filename: '[name].js'
    },
    module: {
        rules: [
            {
                test: /\.vue$/,
                use: 'vue-loader'
            },
            {
                test: /\.css$/,
                use: [
                    MiniCssExtractPlugin.loader,
                    'css-loader'
                ]
            },
            {
                test: /\.scss$/,
                use: [
                    MiniCssExtractPlugin.loader,
                    'css-loader',
                    'sass-loader'
                ]
            },
        ]
    },
    plugins: [
        new VueLoaderPlugin(),
        new MiniCssExtractPlugin({
            filename: '[name].css'
        })
    ]
};