Add link if documentationUrl is undefinde

apps/app/src/client/components/Admin/G2GDataTransfer.tsx

@@ -278,8 +278,13 @@ const G2GDataTransfer = (): JSX.Element => {
       <div className="alert alert-warning mt-4">
         <p className="mb-1">{t('commons:g2g_data_transfer.transfer_key_limit')}</p>
         <p className="mb-1">{t('commons:g2g_data_transfer.once_transfer_key_used')}</p>
-        {/* eslint-disable-next-line react/no-danger */}
-        <p className="mb-0" dangerouslySetInnerHTML={{ __html: t('commons:g2g_data_transfer.transfer_to_growi_cloud', { documentationUrl }) }} />
+        <p
+          className="mb-0"
+          // eslint-disable-next-line react/no-danger
+          dangerouslySetInnerHTML={{
+            __html: t('commons:g2g_data_transfer.transfer_to_growi_cloud', { documentationUrl: documentationUrl || 'docs.growi.org' }),
+          }}
+        />
       </div>
     </div>
   );