wip: we can now travel between towns

wip: we can now travel between towns

The travel system is very rudimentary right now.

Each city has a path that it leads to, and a path that leads to it.

The city/travel paths are done via the new socket event code layout and
is integrated with AirTable. The new seed for cities will create missing
cities and add missing links. It will also modify city names if the ID
already exists.

Weve also done a large change to migrate content over to integer ids so
that its' easier to create content from AirTable.

Monsters/Locations/Cities are all done via integer Ids.. when a fight is
created, we utilize a uuid, but maintain a reference back to the core
monster via `ref_id`.