Update JS dependencies (#12474)

* Update JS dependencies

- Update worker-loader options (currently unused pending #12459)
- Remove @babel/plugin-proposal-object-rest-spread, it's enabled by
  default
- Switch cssnano-webpack-plugin to css-minimizer-webpack-plugin which
  had been renamed

* switch to css-minimizer-webpack-plugin

webpack.config.js

@@ -1,6 +1,6 @@
 const fastGlob = require('fast-glob');
 const wrapAnsi = require('wrap-ansi');
-const CssNanoPlugin = require('cssnano-webpack-plugin');
+const CssMinimizerPlugin = require('css-minimizer-webpack-plugin');
 const FixStyleOnlyEntriesPlugin = require('webpack-fix-style-only-entries');
 const MiniCssExtractPlugin = require('mini-css-extract-plugin');
 const MonacoWebpackPlugin = require('monaco-editor-webpack-plugin');
@@ -80,9 +80,9 @@ module.exports = {
           },
         },
       }),
-      new CssNanoPlugin({
+      new CssMinimizerPlugin({
         sourceMap: true,
-        cssnanoOptions: {
+        minimizerOptions: {
           preset: [
             'default',
             {
@@ -113,9 +113,7 @@ module.exports = {
           {
             loader: 'worker-loader',
             options: {
-              name: '[name].js',
-              inline: true,
-              fallback: false,
+              inline: 'no-fallback',
             },
           },
         ],
@@ -151,7 +149,6 @@ module.exports = {
                     regenerator: true,
                   }
                 ],
-                '@babel/plugin-proposal-object-rest-spread',
               ],
               generatorOpts: {
                 compact: false,