Feedback for bots

[Jonah987654321]

It would be cool to have a feature that a dialogue, similar to the one that pops up if you delete a server, pops up if a bot gets removed from a server. In this dialogue the member who removed the bot can select an option why they removed the bot.
This would be really helpful to improve bots

[Zoddo]

Slightly related: #3988

[sevenc-nanashi]

And #3663

[typpo]

Deduping with #3663