Add Windows handling

Author: edwardchalstrey1

catalog/__init__.py

@@ -1,3 +1,4 @@
+import sys
 from importlib.resources import as_file, files
 
 import pandas as pd
@@ -17,6 +18,10 @@ def load(slug: str) -> gbt.Game:
     """
     Load a game from the package catalog.
     """
+    # Handle backslashes for Windows
+    if sys.platform == "win32":
+        game_slug.replace("/", "\\")  # noqa: F821
+
     for suffix, reader in READERS.items():
         resource_path = _CATALOG_RESOURCE / f"{slug}{suffix}"
 
@@ -45,6 +50,10 @@ def games() -> pd.DataFrame:
             rel_path = resource_path.relative_to(_CATALOG_RESOURCE)
             game_slug = str(rel_path.with_suffix(""))
 
+            # Replace backslashes for Windows
+            if sys.platform == "win32":
+                game_slug.replace("\\", "/")  # noqa: F821
+
             with as_file(resource_path) as path:
                 game = reader(str(path))
                 records.append(