4.6.6

Bug fixes

[3af388b] Fix passing TranslatableInterface Choices to ChoiceField (@Amunak)
[ce6722a] Tweak some modal border colors in dark mode (@javiereguiluz)
[be6a5f8] Fix dynamic property deprecation notice (@asispts)
[ef7fed4] Fix incorrect HTTP status code for form validation errors (@asispts)
[8f1abc3] Misc. doc fixes (@flegars)