Embed Notice

Notice how:

- A 2 second settle duration is set. Coupled with the 0.7 second transition set in CSS, this makes toast messages fade + slide in for 0.7 seconds, remain displayed for 1.3 seconds, then fade + slide out in 0.7 seconds.

- We first stream a new Toast fragment followed by a MessageInput fragment to clear the message input.

- The message input doesn’t lose focus. This is due to the morph attribute on it making Kitten surgically replace changed attributes instead of the whole element.