More robust connection attempt

[nicolaschan]

Sometimes there is some issue where two people can't connect. There are some potential fixes:

• mesh routing through other peers
• coordinate connection attempt timing through baybridge

[nicolaschan]

Sometimes they disconnect and can't come back. One side gets

[2024-09-08 21:05:23][DEBUG][veq::handler] Established session handle_incoming() failed with decrypt error

I assume the other side is stuck in some state where it's using an outdated key. After restarting session on my side, it does not make any connection progress through the states.