Hide 'available in search' checkbox behind a feature flag

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

-import { DatePicker } from '@mui/lab'
+import { useState } from 'react'
+import { Controller, useForm } from 'react-hook-form'
+import { useTranslation } from 'react-i18next'
+import { Link, useHistory, useParams } from 'react-router-dom'
+import { format } from 'date-fns'
 import { addDays } from 'date-fns/fp'
+import { DatePicker } from '@mui/lab'
 import {
   Checkbox,
   Button,
@@ -15,17 +20,13 @@ import {
   Typography,
 } from '@mui/material'
 import Page from 'components/page'
-import { format } from 'date-fns'
+import { Guest } from 'interfaces'
 import useOus, { enSort, nbSort, OuData } from 'hooks/useOus'
 import useRoleTypes, { RoleTypeData } from 'hooks/useRoleTypes'
-import { Guest } from 'interfaces'
-import { useState } from 'react'
-import { Controller, useForm } from 'react-hook-form'
-import { useTranslation } from 'react-i18next'
-import { Link, useHistory, useParams } from 'react-router-dom'
 import SponsorInfoButtons from 'routes/components/sponsorInfoButtons'
 import { submitJsonOpts } from 'utils'
 import { useFeatureContext } from 'contexts/featureContext'
+import { availableInSearchEnabled } from 'appConfig'
 
 type AddRoleFormData = {
   orgunit: number
@@ -72,7 +73,7 @@ const postRole = async (formData: AddRoleFormData, pid: string) => {
   if (formData.comments) {
     payload.comments = formData.comments
   }
-  if (formData.available_in_search) {
+  if (availableInSearchEnabled && formData.available_in_search) {
     payload.available_in_search = formData.available_in_search
   }
 
@@ -299,16 +300,17 @@ function NewGuestRole({ guest, reloadGuestInfo }: NewGuestRoleProps) {
               {...register('comments')}
             />
           )}
-
-          <FormControlLabel
-            control={
-              <Checkbox
-                id="available_in_search"
-                {...register('available_in_search')}
-              />
-            }
-            label={t('input.searchable')}
-          />
+          {availableInSearchEnabled && (
+            <FormControlLabel
+              control={
+                <Checkbox
+                  id="available_in_search"
+                  {...register('available_in_search')}
+                />
+              }
+              label={t('input.searchable')}
+            />
+          )}
           <Button variant="contained" color="secondary" type="submit">
             {t('button.save')}
           </Button>