Themes referenced in docs aren't available in the UI

[IlyaBizyaev]

Relevant Page(s)

https://help.kagi.com/kagi/settings/appearance.html

Description

None of these themes:

• Calm Blue
• Fine Print
• Royal Blue
• Moon Dark

— are available in settings. All I have are Kagi Light/Dark and Old School Light/Dark.

[laizxyz]

Fixed in #549