Allow forward slashes in series name when validating input

Author: tieneupin

src/murfey/server/api/clem.py

@@ -163,7 +163,7 @@ def get_db_entry(
 
     # Validate series name to use
     if series_name is not None:
-        if bool(re.fullmatch(r"^[\w\s\.\-]+$", series_name)) is False:
+        if bool(re.fullmatch(r"^[\w\s\.\-/]+$", series_name)) is False:
             raise ValueError("One or more characters in the string are not permitted")
 
     # Return database entry if it exists