Better logging

packager.py

@@ -1,10 +1,12 @@
+# packager.py
+
 import zipfile
 from pathlib import Path
 
 
 def zip_files(slug, chapter: dict, files: list[Path], save_dir: Path):
-    save_dir.joinpath(slug).mkdir(exist_ok=True)
-    filename = save_dir.joinpath(slug).joinpath(f"{slug} Ch.{chapter.get('nr'):g}.cbz")  # type: ignore
+    save_dir.joinpath(slug).mkdir(parents=True, exist_ok=True)
+    filename = save_dir.joinpath(slug).joinpath(f"{slug} Ch.{chapter.get('nr'):g}.cbz")
     with zipfile.ZipFile(filename, "w") as zf:
         for file in files:
             zf.write(file, file.name)