fix: fix _get_document_from_index

typos in code and comments

openedx/core/djangoapps/content/search/api.py

@@ -585,14 +585,15 @@ def _get_document_from_index(document_id: str) -> dict:
  """
  client = _get_meilisearch_client()
  document = None
+ index_name = STUDIO_INDEX_NAME
  try:
- index = client.get_index(STUDIO_INDEX_NAME)
- return index.get_document(id)
+ index = client.get_index(index_name)
+ document = index.get_document(document_id)
  except (MeilisearchError, MeilisearchApiError) as err:
- # The index or documennt doesn't exist
- log.exception(err)
+ # The index or document doesn't exist
+ log.warning(f"Unable to fetch document {document_id} from {index_name}: {err}")
 
- return None
+ return document
 
 
 def upsert_library_collection_index_doc(library_key: LibraryLocatorV2, collection_key: str) -> None: