i18n(pl): update `getting-started.mdx`

[gacek1123]

Description (required)

Reopened https://github.com/withastro/docs/pull/8207 because I forgot it was still open and deleted my fork (oops).

Related issues & labels (optional)

• Suggested label: i18n

[vercel[bot]]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Updated (UTC)
docs	✅ Ready (Inspect)	Visit Preview	May 16, 2024 4:24pm

[astrobot-houston]

Lunaria Status Overview

🌕 This pull request will trigger status changes.

Learn more

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
pl	getting-started.mdx	Localization changed, will be marked as complete.
pl	ui.ts	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.