Upgrade babel

package.json

@@ -64,17 +64,12 @@
   },
   "devDependencies": {
     "@babel/cli": "^7.14.5",
-    "@babel/core": "^7.10.5",
-    "@babel/plugin-proposal-class-properties": "^7.13.0",
-    "@babel/plugin-proposal-nullish-coalescing-operator": "^7.14.5",
-    "@babel/plugin-proposal-optional-chaining": "^7.12.1",
-    "@babel/plugin-syntax-dynamic-import": "^7.2.0",
-    "@babel/preset-env": "^7.12.7",
+    "@babel/core": "^7.14.6",
+    "@babel/preset-env": "^7.14.7",
     "@converse/headless": "file:src/headless",
     "autoprefixer": "^9.8.6",
     "babel-eslint": "^10.1.0",
     "babel-loader": "^8.2.2",
-    "babel-plugin-lodash": "^3.3.4",
     "bootstrap.native-loader": "2.0.0",
     "clean-css-cli": "^4.3.0",
     "copy-webpack-plugin": "^9.0.0",

webpack.common.js

@@ -92,13 +92,7 @@ module.exports = {
                             }
                         }]
                     ],
-                    plugins: [
-                        'lodash',
-                        '@babel/plugin-proposal-class-properties',
-                        '@babel/plugin-proposal-nullish-coalescing-operator',
-                        '@babel/plugin-proposal-optional-chaining',
-                        '@babel/plugin-syntax-dynamic-import'
-                    ]
+                    plugins: []
                 }
             }
         }, {