Remove duplicate text from RU translation in astro-pages.mdx

[wrld1]

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This page has repeated text with slightly different phrasing at the end. In the English translation, there is only one such paragraph
My nickname in Discord: wrld1

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Name	Status	Preview	Updated (UTC)
docs	✅ Ready (Inspect)	Visit Preview	Jun 14, 2024 6:39pm

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ru	basics/astro-pages.mdx	Localization changed, will be marked as complete.

Warnings reference

Icon	Description
🔄️	The source for this localization has been updated since the creation of this pull request, make sure all changes in the source have been applied.

[sarah11918]

Thank you for this helpful tidy up of the page, @wrld1 ! We appreciate you taking the time to improve the page, and are happy to welcome you to Team Docs! 🥳