Update Landofile
Update Landofile

- Replace the `cd /app/src &&` pattern with the new `dir` config to set
the workdir of each tooling command.
- Add a restart-runserver tooling command, for quick restarts and
debugging.

BirkbeckCTP/janeway,BirkbeckCTP/janeway,BirkbeckCTP/janeway,BirkbeckCTP/janeway