/docs/reference/pdf/の翻訳

[gomazarashi]

/pdf/の翻訳です。

[Copilot]

Pull Request Overview

This PR translates the /docs/reference/pdf/ documentation page from English to Japanese, updating the translation status and providing comprehensive Japanese documentation for PDF-related functionality in Typst.

• Translates the main PDF reference documentation to Japanese
• Updates translation status from "untranslated" to "translated"
• Adds Japanese comment for the PDF embed functionality

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
website/translation-status.json	Updates translation status for /docs/reference/pdf/ from "untranslated" to "translated"
docs/reference/export/pdf.md	Complete Japanese translation of PDF documentation including standards, export options, and usage instructions
crates/typst-library/src/pdf/embed.rs	Translates the doc comment for the PDF embed struct to Japanese

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[gomazarashi]

@ultimatile
レビューありがとうございます。それぞれ対応させていただきました。

[kimushun1101]

ありがとうございます。微修正のみで、問題ないと思います。

[kimushun1101]

ご対応いただきありがとうございました。