Fix a bug introduced in 6952516 which led to the app being unable to
start if logging was enabled but no explicit path was set. In this case,
the expected behaviour is to fallback to a log file in the XDG file
hierarchy, but this was lost due to broken config file defaults
handling.
This commit separates the behaviour when setting defaults when reading
an existing configuration, from those set when creating a brand new
configuration.
This seems to have been unnecessary and can actually cause the app to
hang on closing if ctrl-c is pressed when the "add destinations" page is
visible.
When a destination is removed, its container is stopped and removed.
This preempts the ContainerWait call in the destination loop, which then
tries to call ContainerInspect to infer if the container is restarting
or not.
It was already known that this call is prone to race conditions. This
commit handles an additional case where the container has already been
completely removed by the time the call is made; we can safely infer
that it is not restarting.
