es-ES "prompt too long" shows literal {{mix}} (variable typo)

A few locale files have placeholder problems that show up at runtime.

Typo'd placeholder (renders literally)

chat.errors.promptTooLong

• en: Prompt is too long (max {{max}} characters)
• es-ES: El mensaje es demasiado largo (máximo {{mix}} caracteres)

{{mix}} doesn't correspond to anything in the source string, so it never interpolates. Spanish users see the literal text {{mix}} in the message.

Dropped placeholders (value silently lost)

These si-LK strings are missing placeholders present in the English source:

• alerts.confirmAddLibrary is missing {{numShapes}}
• errors.fileTooBig is missing {{maxSize}}
• errorSplash.trackedToSentry is missing {{eventId}}

These don't render anything broken, they just lose the number, size, or event ID the sentence exists to communicate.

Notes

Found these by running an open-source i18n checker over the locale files. Since translations are Crowdin-managed, the fixes probably belong there rather than in a PR against this repo, so flagging here instead of sending a patch. Happy to open one if you'd prefer the files corrected directly.

Might also be worth a placeholder-parity check in CI between en.json and the translated files. This class of bug is invisible until someone reports a rendered string.