impr(input-indicator): add input indicator to more modals (@Leonabcd123)

[Leonabcd123]

Changed modals:

• Custom test duration
• Custom word amount
• Quote submit
• Save custom text

All of these have validation for some of their fields, but don't have the input validation indicator enabled.

[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