i18n(ja): Update configuration.mdx

[morinokami]

Description

• Update ja/reference/configuration.mdx.
• diff (https://github.com/withastro/starlight/commits/main/docs/src/content/docs/reference/configuration.md?since=2023-09-01 and https://github.com/withastro/starlight/commits/main/docs/src/content/docs/reference/configuration.mdx?since=2023-09-01)
  • Add titleDelimiter option to the api and a new design for <title> #447
  • Add support for custom HTML attributes to sidebar links #774
  • Support component customisation #709
  • docs: refactor sidebar label translations examples to use tags with regional subtags #881
  • docs: refactor social links configuration reference #869
  • feat: extend badge to be available for group links #995
  • Add Expressive Code to Starlight #742
  • Add more EC text markers and frames to Starlight docs #1102
  • Add a pagefind boolean flag to user config #1144
  • Initial Starlight Plugins support #942

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Name	Status	Preview	Updated (UTC)
starlight	✅ Ready (Inspect)	Visit Preview	Dec 3, 2023 9:38am

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Latest commit: b32ed71

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[HiDeoo]

Thanks for the translation 🙌

As a non-native speaker, I reviewed this PR using the Docs Translation Review Checklist.

One small detail, it looks like the x.com example example from this change is missing but I cannot suggest a change for it as it's outside of the revision range. Except for that, everything looks good to me 👍

[morinokami]

@HiDeoo Thanks for spotting it!

[HiDeoo]

Thanks for the quick fix.