impr(input-indicator): add input indicator to all fields with validators (@Leonabcd123)

[Leonabcd123]

Remove the showIndicator property from InputField, instead check whether validators exists to decide whether we should show the input indicator.

[fehmer]

I havent tested this yet, but maybe we could remove the showIndicatorproperty and check for props.field().options.validatorsto be present?

It is kind of odd to define validations on a field but don't want to show the indicator for it

[Miodec]

Thanks