Unify concept of absolute_id and remote_id

fedireads/connectors/openlibrary.py

@@ -124,7 +124,7 @@ class Connector(AbstractConnector):
 
 
     def format_search_result(self, doc):
-        # build the absolute id from the openlibrary key
+        # build the remote id from the openlibrary key
         key = self.books_url + doc['key']
         author = doc.get('author_name') or ['Unknown']
         return SearchResult(

fedireads/connectors/self_connector.py

@@ -41,7 +41,7 @@ class Connector(AbstractConnector):
     def format_search_result(self, book):
         return SearchResult(
             book.title,
-            book.absolute_id,
+            book.local_id,
             book.author_text,
             book.published_date.year if book.published_date else None,
         )