Is there a specific reason kotlinx datetime only has UTC in `TimeZone.availableZoneIds` for web?

# kotlinx-datetime

[martmists]

Is there a specific reason kotlinx datetime only has UTC in TimeZone.availableZoneIds for web?

[Dmitry Khalanskiy [JB]]

Please see https://github.com/Kotlin/kotlinx-datetime?tab=readme-ov-file#note-about-time-zones-in-js and the later sections.