Throughout the application, we have input fields which might have an invalid value, e.g. in the target value duration modal and several filter modals.

While we do a good job at disabling the Confirm button in these modals, we should highlight the invalid input fields like we do in the alerting modal.

AT:

• Report name field is highlighted in red if empty
• the date input fields in the start date filter modal are highlighted if entered date is invalid
• the duration input field in the duration filter modal is highlighted if the input is empty or not a number
• in the variable filter modal, the numeric fields are highlighted if entered value is not a number
• in the target value modal, the not-empty fields are highlighted if the value is not a number or equals 0
• each of above has a note saying what kind of value should be entered in the input field when highlighted