Added serverless scheduled functions with Firebase

src/scripts/firebase/firebaseInit.ts

@@ -0,0 +1,11 @@
+import * as firebase from "firebase/app";
+import "firebase/firestore";
+
+firebase.initializeApp({
+  apiKey: "AIzaSyBI36X2-p7vU1flxoJdCEc0noByyTe1mpw",
+  authDomain: "stacjownik-td2.firebaseapp.com",
+  databaseURL: "https://stacjownik-td2.firebaseio.com",
+  projectId: "stacjownik-td2",
+});
+
+export default firebase.firestore();