fix: remove unnecessary files from builds

package.json

@@ -53,6 +53,7 @@
     "postcss-url": "^10.1.3",
     "style-loader": "^4.0.0",
     "to-string-loader": "^1.2.0",
-    "url-loader": "^4.1.1"
+    "url-loader": "^4.1.1",
+    "webpack-remove-empty-scripts": "^1.0.4"
   }
 }

webpack.config.js

@@ -1,6 +1,7 @@
 var path = require('path');
 var CopyPlugin = require('copy-webpack-plugin');
 const MiniCssExtractPlugin = require('mini-css-extract-plugin');
+const RemoveEmptyScriptsPlugin = require('webpack-remove-empty-scripts');
 var webpack = require('webpack');
 var fs = require('fs');
 var package = require('./package.json');
@@ -24,7 +25,6 @@ const defines = {
 module.exports = [
   // WebExtension
   {
-    devtool: "source-map",
     entry: {
       content: './src/content/content.ts',
       background: './src/background/background.ts',
@@ -93,6 +93,7 @@ module.exports = [
       extensions: [".ts", ".tsx", ".js", ".json"]
     },
     plugins: [
+      new RemoveEmptyScriptsPlugin(),
       new webpack.DefinePlugin({ ...defines, __ENV_WEBEXTENSION: true, __ENV_USERSCRIPT: false}),
       new CopyPlugin({ patterns: [
         { from: './src/manifest.json', to: 'manifest.json',