Translated the new keys to es_MX

Added the es_MX translations for Audio, screen mode, HUD toggle and No fail mode, HUD toggle was translated to SHOW/HIDE text since there is no direct translation for Toggle in spanish and HUD would translate to Información en pantalla which would be too long, text was used assuming this would string will show up in cutscenes to hide the text, but that word could be replaced with botónes or efectos.