Log notification errors.

Not much I can do about them.

mnpw/__init__.py

@@ -15,9 +15,11 @@ HOSTNAME = socket.gethostname()
 
 def notify(message):
     """Send a notification."""
-    requests.post(
+    r = requests.post(  # pylint: disable=invalid-name
         "https://notify.shore.co.il/send", params={"message": message}
     )
+    if not r.ok:
+        logging.error(f"Failed to send notification: {r.reason}.")
 
 
 def main():  # noqa: MC0001