Update es_CL.json

Merged both translations. "Preferences" kept as short as possible to avoid a wide menu. Capitalizations following the original strings' styles. Using the words "juego(s)" for "game(s)" and "videojuego(s)" for "videogame(s)" following the original strings. Still unsure about "tocar" or "reproducir" for "play".
Update es_CL.json
Merge pull request #1 from Sicno/patch-1

Update es_CL.json