fix: add localization to uptime strings

[jedrzejdocs-code]

Fixes #592 Added l10n translation support for uptime display strings (days, hours, minutes, seconds) in the formatUptime() function.

[jedrzejdocs-code]

Ready for review when you have a moment. Happy to make any changes if needed.

[github-actions]

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[kesselb]

Thanks a lot 🙏