[Feat] Support for webhook message proxies (PluralKit, others)

[CrimsonFork]

Checklist

• The same feedback was not posted yet.
• This is not a suggestion for the moderation team.
• All info applicable to the issue has been attached.

Problem

In its current state, Unifier removes shared messages that have been removed and does not share webhook messages. This is usually not an issue, but completely breaks communication when a service like PluralKit is used, which removes messages and places their contents into a webhook to change appearance.

Proposed solution

The most intuitive solution would be to let webhooks be copied over like regular messages do. Perhaps with an ability to exclude specific webhooks or webhooks created by a specific bot/account.

Alternatives considered

No response

Additional context

We run a safe space for plural folks, many of whom who use PluralKit as an essential accessibility tool that makes communication a lot easier.

[greeeen-dev]

Did you mean webhooks or websockets?

[CrimsonFork]

Oops, yeah, webhooks, ^^'.

[greeeen-dev]

You can use u!addbridge (run /help query:addbridge for more info) to allow certain users' webhooks to bridge, if you're using a self-hosted instance where you have owner/admin privileges.

If you're using the public instance, we're building a more intuitive solution for managing this with Filters for 3.8.0. We'll try to finish this release by next week (I have mid-semester/term break then, so I'll have time to test and finalize the release).

[greeeen-dev]

Quick update on this - I actually don't have my midterm break next week, it's actually in two weeks.

But we've managed to finish testing either way, and we'll be ready to release this as soon as our Revolt and Guilded Support modifiers are up to date and we test upgrading Unifier from 3.7.1 to 3.8.0.

[greeeen-dev]

Closing this since 3.8.0 is merged now, expect this feature to be available on the public instance in about 3 days or so.