[feature]: Discord webhook notifications

[Unyxos]

Is there an existing issue for this?

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Summary

Allow to receive projects' updates in a Discord server using a webhook integration

Why should this be worked on?

The idea would be to be able to setup a discord webhook to receive updates from projects in a discord server, similarly to how Gitlab does it when new changes happen in projects : https://docs.gitlab.com/ee/user/project/integrations/discord_notifications.html

It'd be helpful to "track" updates from other team members when using Discord as the team's discussion tool :)