fix broken umd export

Author: strausr

package.json

@@ -109,6 +109,10 @@
       "require": "./bundles/*.cjs",
       "import": "./bundles/*.js"
     },
+    "./bundles/umd": {
+      "require": "./bundles/umd/base.js",
+      "import": "./bundles/umd/base.js"
+    },
     "./config/*": {
       "require": "./config/*.cjs",
       "import": "./config/*.js"
@@ -144,4 +148,4 @@
       "default": "./index.js"
     }
   }
-}
+}