Show role comments and use feature flags

Comments and contact person had feature flags created for their visibility some time ago, but we missed this section of the frontend. In addition, comments that were set on a role during invitation was not visible later, defeating the purpose. They are now visible if comments are enabled.

Resolves: GREG-197

frontend/src/routes/sponsor/guest/guestRoleInfo/index.tsx

@@ -109,13 +109,6 @@ export default function GuestRoleInfo({ guest }: GuestRoleInfoProps) {
     contact_person_unit: null,
     comments: null,
   })
-  // Find the role info relevant for this page
-  const getRoleInfo = () => {
-    const roleInfo = guest.roles.filter((ro) => ro.id.toString() === id)[0]
-    if (roleInfo) {
-      setRole(roleInfo)
-    }
-  }
   // Prepare min and max date values
   const today = new Date()
   const todayPlusMaxDays = addDays(role.max_days)(today)
@@ -154,10 +147,21 @@ export default function GuestRoleInfo({ guest }: GuestRoleInfoProps) {
   const {
     control,
     handleSubmit,
+    setValue,
     formState: { isDirty, isValid },
-  } = useForm({ mode: 'onChange' })
+  } = useForm<RoleFormData>({ mode: 'onChange' })
   const onSubmit = handleSubmit(submit)
 
+  // Find the role info relevant for this page
+  const getRoleInfo = () => {
+    const roleInfo = guest.roles.filter((ro) => ro.id.toString() === id)[0]
+    if (roleInfo) {
+      setRole(roleInfo)
+      // Set values of date fields to current dates if role exists
+      setValue('end_date', roleInfo.end_date)
+      setValue('start_date', roleInfo.start_date)
+    }
+  }
   useEffect(() => {
     getRoleInfo()
   }, [guest])