Before this change, we would save the working directory *on the client*
of each shell that was running in a terminal.
While it's technically right, it's wrong in all of these cases where
`working_directory` was used:
- in inline assistant
- when resolving file paths in the terminal output
- when serializing the current working dir and deserializing it on
restart
Release Notes:
- Fixed terminals opened on remote hosts failing to deserialize with an
error message after restarting Zed.
efc4d3efdf