Since it's using `require` to get the localisation strings, check if the error is `MODULE_NOT_FOUND` before moving on – because if it isn't, then there is an unknown error that should be thrown. Thanks @rschamp for the suggestion!
Before we were using glob, which was about to start failing on subdirectories in views (which we started using in `conference`). Instead of searching for `l10n.json`, it seemed more appropriate to instead look for localization by using the configured pages that need to be localized.
