chat: keep as many instances of opened chat as there are active WHWrapper, instead of just one: Chat instances can be shown on any WHWrapper, even in all at the same time, so we keep as many instances as active wrapper to avoid unnecessary widget (re)creation

[DEFAULT]
bridge = pb
log_level = debug
log_fmt = #[%%(levelname)s][%%(name)s] %%(message)s

[cagou]
no_certificate_validation = true
log_level = debug
log_fmt = [%%(levelname)s][%%(name)s] %%(message)s