Joining a channel where my nick is in use fails silently

Issues
1

I see the conflict XML in my console but no error is visible to me.

2

Should we show an error / provide a UI for choosing a nick or should we just try again with _ appended or something like some irc clients do

3

I think the best experience would be something like "your nick is in use, join with nick_? or enter new nick. maybe modal?

____________________________________________
| nick already in use. join room with:      |
| ________________________________  ______  |                                          | | nick_                        | | join | |
| ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾  ‾‾‾‾‾‾  |
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