i18n(it): Minor changes on multiple files

[casungo]

Description (required)

Made some minor changes on multiple files. These changes can be merged by someone that doesn't speak italian too.

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Name	Status	Preview	Updated (UTC)
docs	✅ Ready (Inspect)	Visit Preview	May 20, 2024 5:56pm

[astrobot-houston]

Lunaria Status Overview

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By default, every PR changing files present in the Lunaria configuration's files property will be considered and trigger status changes accordingly.

You can change this by adding one of the keywords present in the ignoreKeywords property in your Lunaria configuration file in the PR's title (ignoring all files) or by including a tracker directive in the merged commit's description.

Tracked Files

Locale	File	Note
it	basics/astro-components.mdx	Localization changed, will be marked as complete.
it	basics/astro-syntax.mdx	Localization changed, will be marked as complete.
it	basics/layouts.mdx	Localization changed, will be marked as complete.
it	guides/astro-db.mdx	Localization changed, will be marked as complete.
it	guides/fonts.mdx	Localization changed, will be marked as complete.
it	guides/prefetch.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.

[yanthomasdev]

Thanks @casungo, we got a few changes in docs here: https://github.com/withastro/docs/commit/30a431404410b29f1840c264c78b16ede062007c, could you update it so we can get ahead with this PR? 🙌