Throttle notifications on a per-room basis

[mprasil]

A common pattern I see especially in 1on1 chats is that people don't generally write their message like an email (one long message sent) but follow more IM-style pattern where they either sent message per-sentence or paragraph. Another common pattern is when someone posts a picture and then follows up with message with description. As a result there's multiple Matrix messages that are all part of single "logical message" for lack of a better term.

This leads to unnecessary notification noise where I do want to be notified on new message from a person, but not necessarily on every new message they might send after within some configurable throttle period.

The idea here is that if I set the notification throttle limit to 5 minutes, then any first message from a person generates notification as usual, but for next 5 minutes any subsequent message from the same person does not generate noisy notification.

As it is now, the messages are unnecessarily noisy - especially in active conversation.

Visually Element clients already group messages within one minute into a single "group" so perhaps the MVP would be to only show notification when client would show the message as separate group? Right now I can't really visually tell whether a group of messages really is one message or multiple grouped together in a client, yet I get notified for multiple events.