504 errors toast occasionally and appear inconsequential

[huumn]

I'm not sure why this started happening but it doesn't appear to indicate a problem we need to surface to the user.

edit: I previously thought this was a deployment issue but its more generic

[huumn]

I think this is related to zaps failing due to timeouts where we toast generically with error.message.

I just had this happen twice and then ~10 minutes got a notification about the zap failing. It would appear the server processes the request but does not respond fast enough.