chore: fix babel config (#2714)

babel.config.js

@@ -7,12 +7,7 @@ const isESM = process.env.NODE_ENV === 'esm';
 
 console.log('Build Package:', path.basename(process.cwd()));
 
-const presets = () => {
+const defaultPlugins = [
-  return ['@babel/preset-react', '@babel/preset-env'];
-};
-
-const plugins = () => {
-  const defaultPlugins = [
   'lodash',
   [
     'babel-plugin-transform-builtin-extend',
@@ -24,13 +19,6 @@ const plugins = () => {
   '@babel/plugin-proposal-class-properties',
   '@babel/plugin-proposal-object-rest-spread',
   '@babel/plugin-proposal-export-default-from',
-    [
-      'emotion',
-      {
-        sourceMap: true,
-        autoLabel: true,
-      },
-    ],
   [
     'module-resolver',
     isESM
@@ -76,11 +64,24 @@ const plugins = () => {
           },
         },
   ],
-  ];
+];
+
+const presets = () => {
+  return ['@babel/preset-react', '@babel/preset-env'];
+};
+
+const plugins = () => {
 
   if (isESM) {
     return [
       ...defaultPlugins,
+      [
+        'emotion',
+        {
+          sourceMap: true,
+          autoLabel: true,
+        },
+      ],
       [
         'transform-define',
         {
@@ -121,10 +122,29 @@ const plugins = () => {
   }
 
   if (!isProduction) {
-    defaultPlugins.push('react-hot-loader/babel');
+    return [
+      ...defaultPlugins,
+      [
+        'emotion',
+        {
+          sourceMap: true,
+          autoLabel: true,
+        },
+      ],
+      'react-hot-loader/babel',
+    ];
   }
 
-  return defaultPlugins;
+  return [
+    ...defaultPlugins,
+    [
+      'emotion',
+      {
+        sourceMap: true,
+        autoLabel: true,
+      },
+    ],
+  ];
 };
 
 module.exports = {