Firebase Update

express-server/node_modules/@firebase/polyfill/dist/index.d.ts

@@ -0,0 +1,24 @@
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import 'whatwg-fetch';
+import 'promise-polyfill/src/polyfill';
+import 'core-js/fn/array/find';
+import 'core-js/fn/array/find-index';
+import 'core-js/fn/object/assign';
+import 'core-js/fn/string/starts-with';
+import 'core-js/fn/string/repeat';
+import 'core-js/fn/symbol';
+import 'core-js/fn/symbol/iterator';