Previously `just install-service buscarron` would not fully work,
because:

- the systemd services were indeed tagged with `buscarron`

- however, the actual installation tasks are not
  `install-buscarron`/`setup-buscarron`, but rather
  `install-bot-buscarron`/`setup-bot-buscarron`

Services are now tagged with the `bot-` prefix to match the tags.