Store created elements in a local SQLite database

Closes #41 (closed)

arkindex_worker/worker.py

@@ -466,7 +466,7 @@ class ElementsWorker(BaseWorker):
         try:
             to_insert = [
                 {
-                    "id": uuid.UUID(created_ids[idx]).hex,
+                    "id": uuid.UUID(created_ids[idx]["id"]).hex,
                     "parent_id": uuid.UUID(parent.id).hex,
                     "name": element["name"],
                     "type": element["type"],