Requirement indication needed for Program ban Volunteer modal

When you ban a volunteer from a program the end date and note should indicates the fields need to be filled first before the button lit up.

Locate the Program ban Volunteer modal in the repository and reproduce the flow described in the issue. Check the end-date and note fields, then verify that the ban button remains disabled until both required fields are filled and that the requirement indication is visible.

Written by the indexing model from the issue text.