Avatars get too large in longer notifications

[peppy]

They were made square and this logic doesn't have a maximum width which makes them get larger and larger.

Seen this come up multiple times, quick fix hopefully.

Discussed in #34968

^{Originally posted by SupDos September 11, 2025}
It's been a while now since the PR that makes avatars square on notifications was added #34533. The way this interacts with longer messages that make the notification larger/longer still looks weird to me. See this comparison between a regular system notification, a short message, and a large message

You suddenly get jumpscared by a massive picture in your notifications which (imo) doesn't look right

There should either be a limit to how big the avatar can get, like this for example, or it should be reverted back to how it was before

someone posted a pretty bad example of this on the discord server: