- legacy Style and ThemePalette removed
- moved and deduplicated font definitions into `Theme` (unrelated to a
color palette)
- `Style.current.foo` -> `Theme.foo`
- `Style.current.fooColor` -> `Theme.palette.fooColor`
- upgrade the imports to 5.15
- removed some mode dead components
Fixes#16514
- reduce the duplication by moving the controllers (1 per type) to the
toplevel stores
- make sure the internal properties stay in sync between save/load now
that we have just 1 common controller
- fix navigating to the Hidden section from the toast
- finish impl of hiding the token from FirstTokenReceivedPopup