Update norch for changes in search-index

The change of `pagesize` to `pageSize` in fergiemcdowall/search-index@b1ae7bcb74c5a8eb3e686f4fd437ab9c98691398 breaks the server. No hits are returned (because `pageSize` is set to 0 automatically if not present)

**Merge only after that change has been pushed to npm!**