Add changes to index.js

Author: Tk2217

src/index.js

@@ -0,0 +1,24 @@
+import FirebaseApp from './FirebaseApp.svelte';
+import User from './User.svelte';
+import Doc from './Doc.svelte';
+import Collection from './Collection.svelte';
+import { userStore } from './auth';
+import { docStore, collectionStore } from './firestore';
+import { fileStore, uploadFileStore } from './storage';
+import File from './File.svelte';
+import Upload from './Upload.svelte';
+
+
+export {
+    FirebaseApp,
+    User,
+    Doc,
+    Collection, 
+    userStore,
+    docStore,
+    collectionStore,
+    fileStore,
+    uploadFileStore,
+    File,
+    Upload,
+}