webpack.config.js

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

module.exports = {
    entry: './src/index.js',
    mode: 'production',
    output: {
        path: path.resolve(__dirname, 'dist'),
        filename: 'custom-trix.js',
        publicPath: 'dist/'
    },
    module: {
        rules: [
            {
                test: /\.css$/,
                use: {
                    loader: MiniCssExtractPlugin.loader
                }
            },
            {
                test: /\.scss$/,
                use: [
                    MiniCssExtractPlugin.loader,
                    {
                        loader: 'css-loader',
                        options: { sourceMap: true }
                    }, {
                        loader: 'sass-loader',
                        options: { sourceMap: true }
                    }
                ]
            },
            {
                test: /\.svg$/,
                loader: 'svg-sprite-loader'
            }
        ],
    },
    plugins: [
        new MiniCssExtractPlugin({
            filename: "custom-trix.css",
        }),
        new webpack.ProvidePlugin({
            $: 'jquery',
            jQuery: 'jquery',
            'window.jQuery': 'jquery'
        }),
    ]
};