work little bit on data

.gitignore

@@ -12,6 +12,6 @@ web-build/
 firebase.js
 # macOS
 .DS_Store
-
+.env
 # Temporary files created by Metro to check the health of the file watcher
 .metro-health-check*

util/data.js

@@ -0,0 +1,8 @@
+import { firestore } from './firebase';
+
+const fetchFirestoreData = async (collectionName) => {
+  const collectionRef = firestore.collection(collectionName);
+  const snapshot = await collectionRef.get();
+  const data = snapshot.docs.map((doc) => ({ id: doc.id, ...doc.data() }));
+  return data;
+}