feat: added slovenian language

[astalil]

📚 Description

Added Slovenian language to the locales. The added language follows the ISO_639 standard

📝 Checklist

• [x] All commits follow the Conventional Commit format
• [x] The PR's title follows the Conventional Commit format

[dargmuesli]

Just a note: the commit's title does not follow the Conventional Commit format as you placed a checkmark for in the PR's description.

[dargmuesli-bot]

:tada: This PR is included in version 8.4.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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