I have spent more time today cleaning up garbage than coding new shit, and I am mad...

I have spent more time today cleaning up garbage than coding new shit, and I am mad (#31246)

* Fix logging of GetWebhook errors

Yeah let's just not log the error only stack trace.

* I have spent more time today cleaning up garbage than coding new shit, and I am mad

Cleans up the custom vote Discord webhook code because I *happened* to lay my eyes on how completely terrible it was and immediately found an obvious bug with it.

Also did basic QA because jesus christ: it more clearly reports pending votes, properly indicates cancelled votes, improves footer formatting, better error logging, all the usual shit.

Requires https://github.com/space-wizards/RobustToolbox/pull/5375 to avoid test failures