docs(locadex): translate filename style change to Spanish

[mintlify]

Summary

Translates the style guide change from PR #3618 (using "filename" instead of "file name") to Spanish.

• Updated es/editor/publish.mdx: Changed "nombre de un archivo" to "nombre del archivo" to match the more compact phrasing

Note: French and Chinese translations already used the correct compound term equivalents ("nom de fichier" and "文件名" respectively), so no changes were needed for those languages.

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Note

Low Risk
Single-wording change in localized documentation only; no functional or code behavior impact.

Overview
Updates es/editor/publish.mdx to change the Spanish wording from “nombre de un archivo” to “nombre del archivo” in the undo-changes instruction, aligning with the “filename” style guidance.

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