Add assets/js/app.js

assets/js/app.js

@@ -0,0 +1,23 @@
+import { initDB } from './db.js';
+import {
+    getNextWord,
+    answerWord,
+    getSessionStats
+} from './offline-engine.js';
+
+import {
+    syncQueue
+} from './sync.js';
+
+await initDB();
+
+window.Woordjes = {
+    getNextWord,
+    answerWord,
+    getSessionStats,
+    syncQueue
+};
+
+window.addEventListener('online', () => {
+    syncQueue();
+});