Fix minor bug in file saving

main.py

@@ -91,7 +91,7 @@ def main(args: dict) -> None:
           print(f"Found '{pres_page_title}'. Finding PDF...")
           for pdf_tag in pres_page_soup.find_all("a", href=re.compile("pdfviewer")):
             pdf_name = pdf_tag["href"].split("/")[-1]
-            file_name = f"{pres_page_title.replace(' ', '_')}-{pdf_name}"
+            file_name = f"{pres_page_title.replace(' ', '_').replace('/', '-')}-{pdf_name}"
             pdf_request = infovaya_session.get(f"{INFOVAYA_ROOT}{pdf_tag['href'][1:]}")
             pdf_request.raise_for_status()
             if b"Download Quota Exceeded" in pdf_request.content: