console: handle disconnection more gracefully about console HOT 5 CLOSED

@hawkw Is there something generic that can be used that works with a backoff or we need to put in place something like the reconnect in Linkerd

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We can probably use tower's reconnect middleware, but it doesn't implement backoffs, so we would have to implement that part ourselves --- there may be other crates in the ecosystem that I'm not personally aware of.

It does seem like support for backoffs is something that's worth having upstream in tower::reconnect. I might open an issue for that.

For now, I would start with handling the error nicer in the UI --- we probably want to continue displaying the last state and add a message at the top that says we lost the conenction to the remote application. Then, we can add reconnection (with a backoff) in a follow-up.

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Update: oh, it turns out there already is an issue for adding backoffs to tower (tower-rs/tower#60) ...and it was opened by me, three years ago. 😅

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Update: oh, it turns out there already is an issue for adding backoffs to tower (tower-rs/tower#60) ...and it was opened by me, three years ago. 😅

Yeah :) Forgot to mention that. Okey, I will add the nicer state handling then.

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Looks like this was done in #57, so I'm going to close :)

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