Add a Spanish catalog for the menus (618 entries), the computed titles and the macOS Services label, and list Español in the Language preference. Match System now maps es, es-ES, es_MX and es-419 to it. Add llopjulen to contributors/people.toml.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01HcDWLRR3UfieXAyFa9cq4p
