Making periodic Synchronisation

src/notes.ts

@@ -167,7 +167,7 @@ class NotesProvider {
    public async start() {
       const next = () => {
          setTimeout(() => {
-            this.sync().then(() => next);
+            this.sync().then(next);
          }, 30000)
       }
       this.syncedObservableServer.send((await this.oplogDB.getAll()).length <= 0);