Fix import from Heroic if no Epic games

src/utils/heroic_parser.py

@@ -112,6 +112,7 @@ def heroic_parser(parent_widget, action):
             open_file.close()
         library = json.loads(data)
 
+        try:
             for game in library["library"]:
                 if not game["is_installed"]:
                     continue
@@ -150,6 +151,8 @@ def heroic_parser(parent_widget, action):
                     save_cover(values, parent_widget, image_path)
 
                 heroic_games[values["game_id"]] = values
+        except KeyError:
+            pass
 
     # Import GOG games
     if not schema.get_boolean("heroic-import-gog"):