i18n(ru): update some translations

[dragomano]

Update:

• ru/guides/overriding-components.mdx
• ru/guides/pages.mdx
• ru/guides/site-search.mdx
• ru/reference/frontmatter.md
• ru/reference/overrides.md
• ru/resources/plugins.mdx

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Latest commit: 4f98cda

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Tracked Files

Locale	File	Note
ru	guides/overriding-components.mdx	Localization changed, will be marked as complete.
ru	guides/pages.mdx	Localization changed, will be marked as complete.
ru	guides/site-search.mdx	Localization changed, will be marked as complete.
ru	reference/frontmatter.md	Localization changed, will be marked as complete.
ru	reference/overrides.md	Localization changed, will be marked as complete.
ru	resources/plugins.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.