Fix font styling in some languages

[hrko]

Thank you for providing such excellent components. They have been immensely helpful in the project I am currently undertaking.

During my usage of the components, I noticed that the font for Japanese text within the Property Inspector does not match the font used outside of it.

To address this, my Pull Request proposes adding 'system-ui' to the font family. This change will ensure that a suitable UI font is automatically selected for any language, enhancing the overall consistency of the component.

The following images show a comparison before and after the applying of PR:

Current:

This PR: