message: fix border radius on close button focus indicator
diff: @@ -15,6 +15,7 @@ const StyledButton = styled.button<StyledButtonProps>`
  background: transparent;
  outline: none;
  cursor: pointer;
  + border-radius: ${get('radii.2')};
  &:focus {
  box-shadow: ${get('buttons.close.shadow.focus')};
  