add translations

Author: SaharBatol-HDRUK

src/config/locales/en.json

@@ -1528,6 +1528,7 @@
       "organisationName": "Name",
       "address": "Address",
       "actions": "Actions",
+      "add": "Add parent",
       "edit": "Edit parent",
       "delete": "Delete parent",
       "parentNameRequired": "Parent name is required",

src/organisms/OrganisationsParents/OrganisationsParents.tsx

@@ -77,7 +77,7 @@ export default function OrganisationsParents({
       </PageSection>
       <FormModal
         open={!!activeParent}
-        heading={activeParent?.id ? t("edit") : t("addParentButton")}>
+        heading={activeParent?.id ? t("edit") : t("add")}>
         <OrganisationsSubsidiaryEditForm
           t={t}
           mutateState={restUpdateState}