webpack.config.js

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

module.exports = {
  entry: {
    popup: "./src/popup.jsx",
    background: "./src/background.jsx",
  },
  resolve: {
    extensions: ['.ts', '.js'],
  },
  output: {
    path: path.resolve(__dirname, "dist"),
    filename: "[name].js",
  },
  module: {
    rules: [
      { 
        test: /\.(js|jsx)$/,
        exclude: /node_modules/, 
        use: {
          loader: "babel-loader",
          options: {
            presets: ["@babel/preset-env", "@babel/preset-react"],
          }
        },
    },
    {
      test: /\.css$/i,
      use: ["style-loader", "css-loader"],
    },
  ],
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: "./src/popup.html",
      filename: "popup.html",
    }),
    new CopyPlugin({
        patterns: [
          { from: "public"},
        ],
      }),
    ],
};