Ignore unreachable nodes in talosctl dashboard

[divanikus]

Feature Request

I use talosctl dashboard a lot and there is one thing which bothers me. talosctl dashboard is a good option to check your cluster state quickly, but if any of it's nodes isn't responding, it just fails. so you have to manually write the whole node list you want to connect to. But it is completely ok if a node goes down while you are look at already running dashboard.

So if I want to ensure the node I have rebooted was brought online, I have to start the dashboard beforehand, emit reboot and I can seat on node's tab and wait when it reconnects. But if I forget to do so, I see no option but wait until nodes fully boots otherwise I cannot start dashboard at all.

So my request is to have ability to open dashboard with all nodes anyways, just reporting node connection can't be established yet on their respective tabs.