webpack.config.js

const path = require('path');
const CopyPlugin = require('copy-webpack-plugin');

module.exports = {
    entry: {
        content: './src/content/index.ts',
        background: './src/background/index.ts',
    },
    output: {
        path: path.resolve(__dirname, 'dist'),
        filename: '[name].js',
        clean: true,
    },
    module: {
        rules: [
            {
                test: /\.tsx?$/,
                use: 'ts-loader',
                exclude: /node_modules/,
            },
            {
                test: /\.css$/,
                use: ['style-loader', 'css-loader'],
            },
        ],
    },
    resolve: {
        extensions: ['.tsx', '.ts', '.js'],
        alias: {
            '@': path.resolve(__dirname, 'src'),
        },
    },
    plugins: [
        new CopyPlugin({
            patterns: [
                { from: 'manifest.json', to: 'manifest.json' },
                { from: 'src/popup', to: 'popup' },
                { from: 'src/icons', to: 'icons', noErrorOnMissing: true },
            ],
        }),
    ],
    optimization: {
        splitChunks: false,
    },
};